The Vallis Undermind: Hotfix 40.0.1

[[DE]Megan]

The Vallis Undermind brought a wide array of content and changes, so we’re keeping a close eye on player feedback as you get your hands on this update. In the meantime, this hotfix is focused on fixing some critical bugs and shipping general polish that missed the release candidate build. 

For an update on remaining issues on our radar, check our Known Issues thread. 

Changes:

• Updated Nokko's Animation Set descriptions in the Market to specify that the Yareli interaction is Nokko-specific.
  • If you purchased these Animation Sets purely for the Yareli interaction, you can request a refund by submitting a Support Ticket. 
• Added Primary Crux, Secondary Enervate, and Melee Doughty to the Höllvania Arcane Collection in Loid’s Arcane Dissolution vendor.

Nokko Fixes:

• Fixed Nokko's Reroot causing players to spawn at its original casting point when entering a respawn volume (i.e. falling off the map, etc.).
• Fixed being able to place Nokko's mushrooms outside of playable mission areas, causing issues if he needed to run to them using his Passive.
• Fixed loss of function when using Railjack turrets and the Archwing Slingshot while transforming into a Sprodling as Nokko.
  • Note: the issue persists when attempting to use the Front Artillery context action.
• Fixed Nokko's Reroot Sprodling SFX being audible during cinematics.
• Fixed Nokko being unable to use Nova's Wormhole while in Sprodling form.

The Teacher Changes & Fixes:

• Equipped Mods are now hidden in The Teacher Quest after players attempt to Dissolve an equipped Stormbringer.
  • Our intention is to teach players about how to identify equipped vs unequipped Mods in the Mod Menu, so this change lets us keep that learning moment, but remove further obstacles if they are still confused by it.
• Disabled Filters in the Mod and Upgrade Menus during The Teacher quest, as they were causing issues with player progression.
• Fixed players being unable to progress in The Teacher quest with a Bleeding Dragon Key equipped.
• Fixed an incorrect error message when attempting to interact with other Arsenal elements after upgrading the Thornbak to deal Magnetic Damage.

Deepmines Changes & Fixes:

• Changed the Scrofa Disc Moa's name to Scrofa Laser Moa.
• Fixed issues with the Scrofa Crewman Eximus' attacks and movement.
• Fixed certain Scrofa units not being highlighted by the Enemy Highlights Accessibility Setting.
• Fixed the Scrofa Shockwave Moa's kick attacks not damaging Clients.
• Fixed a script error when Analyzing mushrooms in the Field Guide.

Top Fixes:

• Fixed players being unable to Wall Latch.
• Fixed the Arbucep not coming with a Gravimag installed when purchased from the Market.
  • With a future hotfix, we’ll be running a script to add Gravimags to purchased Arbuceps and refund any purchased Gravimags that were installed in purchased Arbuceps. 
• Fixed performance issues caused by certain types of explosions, notably from the Kuva Bramma, Tonkor, and Zarr.
• Fixed the accidental removal of the Somatics D11 and Somatics Asa-03 Operator Facial Markings.
• Fixed Arcane Adapter slots not working with Modular Weapons (Kitguns, Zaws, etc.).
  • If you installed an additional Arcane Adapter to regain access to these Arcane Slots, please submit a Support Ticket.

General Fixes:

• Fixed the updated Mod and Upgrade menus appearing too small with Menu Scale set to Legacy.
• Fixed Damage Numbers covering the new Recoil reticle with Screen Shake toggled off.
• Fixed armor offset issues on the Wukong Qitian Skin.
• Fixed a broken elbow texture on the Wukong Qitian Skin.
• Fixed the Sprodling Ephemera's diorama not actually showing the Sprodlings.
• Fixed the Sprodlings from the Sprodling Ephemera falling through the floor in the Operator Customization screen on lower-spec machines.
• Fixed texture and clipping issues with Ivy decorations.
• Fixed the Duviri Candleholder Tree (Tall) decoration having an incorrect snap-to-surface point.
• Fixed hologram VFX on the Tenet Arca Plasmor no longer using custom energy tints.
• Fixed the Einheri Balefire Charger Skin indicating it is for an item you don't own when equipped on Balefire Charger Prime.
• Fixed capitalization errors in objective descriptions in the Chains of Harrow quest.

Script Errors and Crashes:

• Tentative fix for crashes on startup for systems using integrated graphics and obsolete drivers.
• Fixed a script error when opening Syndicate Menus, causing issues with the interface.
• Fixed a script error caused by Oberon's Passive for Clients in the Simulacrum.
• Fixed a script error caused by Oberon's Hallowed Ground.
• Fixed a script error in the End of Mission screen.
• Fixed a script error caused by Oberon's Smite.
• Fixed a script error caused by Oberon's Renewal.
• Fixed a script error related to Mag's Bullet Attractor.
• Fixed a script error caused by Oberon's Reckoning.
   

[Voltage]

Thank you for the quick hotfix. Please remove recoil from the continuous weapons that had it intentionally added. Beam weapons are not supposed to have recoil as per Update 22.13.3. Adding undocumented recoil to various beam weapons goes against the stated intention of continuous weapon behavior.

 

[Debatra]

[SomeLad]

I will still insist on suggesting that "auto-leave random squads" must be made a toggle. One day I shall reach the unreachable dream.

Edited October 15 by SomeLad

[Megazawr]

Be careful when changing settings while in fullscreen, they may become bugged and you may not even notice it: https://forums.warframe.com/topic/1426429-some-settings-reset-if-you-recently-changed-them-and-alttabbed-while-in-fullscreen-mode/  (I haven't checked it in a while, lmk if it still happens or not)

If you are unable to open main menu with escape button in hubs, use gear wheel to open arsenal, then click on your icon in the top left to open it. Just opening and closing arsenal also fixes it sometimes.

If you got stuck on navigation screen, a)make sure your cursor doesn't hover over any node then open and close chat b)press on forge notification in the top right.

Do not leave Zariman missions as operator, you may lose picked up loot. https://forums.warframe.com/topic/1453340-missing-loot-when-extracting-from-zariman-in-operator-as-a-client/

• I have been told by [DE]James on August 14, 2025 in my support ticket that this bug was "waiting on a fix to go live to push it through". It is fixed and just not mentioned in any of the patch notes since then (I checked them all) or not fixed yet?

Warframe trade data at https://www-static.warframe.com/repos/weeklyRivensPC.json has not been updated since 13 May 2024

 

To developers, please, fix these other old detrimental bugs:

 

• Unable to see each other in dojo thus not being able to trade
• Many special weapon effects and mods, such as Ogris' Nightwatch Napalm, dont't proc off Mirage's Doppelgangers. Their kills also often don't count toward the 1999 calendar challenges.
• Clients' Seeking Shuriken still doesn't always apply the armor strip.
• Nezha's Warding Halo not applying to damage that breaks it.
• The second Azothane's Heavy Attack only hits once instead of twice, like other 2h nikanas do.
• Exctraction timer often disappears or resets if one player attempts to leave an endless mission.
• Projectiles from Quassus prime and other weapons heavy attacks will deal less damage if you attack too fast or skip animations: https://forums.warframe.com/topic/1424922-quassus-projectiles-from-heavy-attack-are-sometimes-considered-to-be-a-light-attack/
• Botanist(Oxylus' precept mod) not working sometimes on clients Maybe fixed.
• Sampotes' waves don't scale off combo multiplier
• Leaving the mission while in Titania's 4 (Razorwing) as a client then reconnecting to the same session deletes your pet.
• Sometimes nullifiers' bubbles cannot be removed by client's attacks.
• Getting transferred back 0.5s after every transference into operator on Zariman, Sanctum Anatomica and Hollvania missions.
• UI cursor sensitivity setting not working at all.
• Stalker specter can cast oberon's 4 on players, which makes him great for griefing(pls fix) https://forums.warframe.com/topic/1433998-stalker-specter-spamming-lift-on-allied-tenno/  possibly fixed with oberon's rework.
• If 2 players have Silence ability and one of them runs out, enemies will be able to use abilities even while under the effect of another Silence.
• Hounds attack enemies without any weapon and attack precepts.
• Umbra's health bar is always grey during a fight with him, even when you can damage him. This confuses new players a lot.
• In rare cases camera getting stuck in one place(warframe can operate just fine).
• Melee enemies don't attack Octavia's mallet+resonator combo https://forums.warframe.com/topic/1413418-melee-enemies-dont-attack-octavias-malletresonator-combo/
• slams from operator launching you in the wrong direction or failing
• waypoints(multiple different bugs in different areas), codex/simulacrum scans,
• kahl getting stuck in a rampart on a "Junk run mission" (but who cares, we don't need to do it anymore)
• Moonwalk bug (still happens as of 2025/10/03, and not just after transference but just loading into anatomica missions as well)
• Sanctuary Onslaught breaking if host migraton happens right before the portal spawns(I think it's in the game since its release)
• Some incarnon bonuses still don't work properly
  For example: Sybaris' Ready Retaliation (+60% reload speed on empty) does nothing.
• Duviri(all modes) is still full of different bugs
  for example: getting a duviri drifter when using transference in the circuit
• Revived vulpaphyla and sentinels don't have invisibility if you have it on until you recast invisibility. Most likely fixed in update 40.0
• If you use quick melee then swap the weapon and shoot fast enough, the weapon swap will be cancelled(but it'll show a different weapon in the bottom right corner right before you shoot). Usually weapon swap cannot be cancelled.
• If you use quick melee then quickly do a heavy slam attack, it can sometimes do a regular slam instead or do no damage at all(but you'll lose combo in any case)
• Automatically using parazon on fallen liches even when not pressing any buttons at all.
• Bulllet jump may malfunction when done right after landing or after slams(even from stance "slam" attacks). Seems to be a collision issue.
• Zenistar disc lasting 100s when you throw it at x12(it returns at 20s left out of 120) #makezenistargreatagain
• Zenistar's disc aura looks much bigger than the actual damaging area if you have any +range mods in it.
• Zenistar's disc interactions with magus aggress are very weird.
• Ancient healer specters seem to noticably lower fps and leak memory.
• Entanglement modifier on EDA causes huge performance loss, especially if you kill enemies too quickly.
• Primary crux still doesn't benefit from multishot on clients.
• Most hitscan aoe damage(such as opticor or incarnon braton) doesn't benefit from multishot.
• Different enemy spawn issues:(I prob forgot something in this list)
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  • Not enough enemies spawning on railjack skirmish missions, resulting in inability to finish it. Last time happened: 2024/08/31 Probably fixed in update 40.
  • Vomvalysts not spawning well if you run around the map too much
  • Dargyns spawning in wrong places on Koro (Kuva fortress assault)
  • Enemies not spawning well enough on most exterminate missions(railjack, zariman and new deimos tileset are an exception). This often results in inability to get 10 reactant if you reached the objective. This is especially bad and very common(~95% consistent) on Techrot exterminate missions if you don't find the cache in time.
  • Enemies can spawn right in front of you on Lua exterminate mission(might be a feature). Same with thraxes on void cascade.
  • On very rare occasions a LOT(like 100) of enemies can spawn in one of the vaults of Archon spy mission on Jupiter.
  • Enemies not spawning soon enough in Liberation stage during cetus bounties, which often results in the control level dipping below 50% before you even get the chance to kill enemies.

   

• also pls fix those cascade/thrax bugs:

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  • in cascade clients very often can't see some of the void tears they cleared (this is very rare for hosts)
  • Using transference in a trokar at a high ping can block transference back to warframe until your operator dies https://forums.warframe.com/topic/1413742-unable-to-recall-into-warframe-after-using-transference-while-in-trokar-as-a-client/#comment-13121525
  • for clients, some thraxes(probably self-revived) can look like ghosts, but act like in a regular form and they seem to be immune to status effects and some abilities(they can be damaged in warframe)
  • sometimes killed(in physical form) thraxes can become invisible and invincible in a ghost form. they can only be noticed by sound and a minimap marker. this is quite rare, but it has ruined some people's void flood missions.
  • in very rare cases(seems to only happen if you strip them with mag's 4 while they successfully recapture an exo) thraxes can become immune to any form armor strip
  • in very rare cases thraxes can become invisible and invincible in a physical form, which lets them recapture exolisers
  • in rare cases there can be an invincible(but visible) ghost thrax that is doing nothing near an exoliser
  • in very rare cases exoliser can stop spawning at all(same condition as exoliser delays below: 3-3-3 or 3-3-4 tile and doing it fast)
  • sometimes in fissure cascade exolisers can become impossoble to clear after they are recaptured by a thrax(this is extremely rare outside of fissure missions)
  • during fissure missons, if you clear the final tear of an exo just as the relic timer hits 0 it'll become permanently unclearable, with no way to fix it.
    This bug is quite common and very detrimental, a fix would be very appreciated in the cascade farming community.
  • there are also more fissure specific bugs that I'm too lazy to list here

  exoliser wrong order(skips, jumps and delays):

  • exoliser skip: instead of going in order 1-2-3-4 in a certain room, they go in the order of 1-2-4(3rd skipped) or2-3-4 (1st skipped). this bug mostly happens in very long(>2h) runs.
  • exoliser jump: usually happens to a skipped exoliser: instead of order 1-2-3-4, it goes 3-1-2-4(3rd spawns before other three). this bug is quite rare.
  • exoliser delay: when the 30s exoliser spawn timer reaches 0, it says that new exoliser has spawned when it actually hasn't. usually next exoliser spawn after the next 30s, but you can get 2-4 delays in a row. https://forums.warframe.com/topic/1416391-void-cascade-delayed-exolizer-spawns/
    this happens very often if you do the mission fast enough in a squad and the total amount of exoliser spawn points is low(for example if you have rooms with 3, 3 and 4 spawn points).

• Also during netracells if you have a U-form map, netramite drones can spawn up to 1km away, which is very annoying.  Still happens as of 2024/11/09 Possibly fixed in update 40.

• Corpus derivator shield effect may remain permanently.
  
  Since the last update: nothing from this list
  
  P.s. "Hide equipped" mods in the trading menu is on by default, which significantly disrupts trading with inexperienced players. It should be off by default, or be MUCH more noticable.

[CuteFoxyFox]

I really hate the new recoil changes... they are not helping at all. Please give us an option to keep old weapon recoil without having screenshake enabled so I dont have to feel like my monitor is sitting on a washing machine with a brick in it...

[MoonlitDeity]

Any chance of making Venom Dose, Freeze Force and Smite Infusion copy energy colours? Fireball Frenzy already does.

[CuteFoxyFox]

Just now, SomeLad said:

I will still insist on suggesting that "auto-leave random squads" must be made a toggle. One day I shall reach the unreachable dream.

I so agree... I miss chatting with people after mission. Just makes it harder to meet cool people

[Xsoskeleton]

New Recoil system still forced? Where is the toggle that is not enabling screenshake to get my old recoil experience?
I'm sorry but this felt like deliberate downgrade instead of being an accessibility option. Moreover after you start adding Primed Recoil reduction mods to Baro few months ago...

[NuclearDeath]

There it goes, the Reticle above my head, from all the shaking it.
Narf.

I mean, I didn't even knew, that there was a screen shake on melee weapons to begin with.
So, enabling it is definitely a no-no.

And that Reticle-Thingy feels so awkward in comparison - when I shoot a weapon, it is just unfilling t_t

Well… better give us a third option or think the whole idea over again^^

[MasterOfDis4ster]

Please revert the recoil changes. That is all.

[Chilldrum]

cant even get the game to update pls fix

[Patron_Of_The_Saints]

A lot of us are unable to complete the update. The launcher tells us "Update failed!



Some content updates could not be downloaded from our servers.



The update will be restarted shortly..."

[Cloudhymn]

DE I beg, make Lavos' new augment follow him. It's counterintuitive the way it works as is. 

[Eternal_Sunset]

2 minutes ago, SomeLad said:

I will still insist on suggesting that "auto-leave random squads" must be made a toggle. One day I shall reach the unreachable dream.

Everyone always left random squads even before that feature was a thing. In effect, you would still be getting dropped by randoms anyways.

[Petite_Souris]

à l’instant, Chilldrum a dit :

cant even get the game to update pls fix

if you're on windows 10, try to restart your pc, its will work.

[(PSN)Torturedvision]

Its nice update but i got a small request to ask. Can we have the option to revert back the recoil change. I still dont want screen shake in general but i dont mind having it in my guns. I feel a bit confused with the new system and i dont think i will adapt to it fast. So of possible can we have an advanced screen shake option where it disable the recoil cross hair but makes the screen shake/recoil on weapon fire.

[CosoMalvadoNG]

 

[Chilldrum]

Just now, Petite_Souris said:

if you're on windows 10, try to restart your pc, its will work.

i am not im on windows 11

[Petite_Souris]

à l’instant, Chilldrum a dit :

i am not im on windows 11

Ok try to restart game completely

[GOD_Khaos]

Thank you for the quick fix. I am enjoying this update a lot. The new cosmetics, nokko's mushroom helmet physics, the new ephemeras & sigils. Top tier stuff. Thank you for the standing reduction of decorations too. 

 

I'd argue some are still a little too high for what they are and how necessary they are for decorations (Zariman Wooden Wall stuff) but overall its great reductions across the board. Thank you again

[Debatra]

1 minute ago, Eternal_Sunset said:

Everyone always left random squads even before that feature was a thing. In effect, you would still be getting dropped by randoms anyways.

Either that or you get a new mission force-started before you even finish loading back into your orbiter.

[TripleMonkey47]

4 minutes ago, CuteFoxyFox said:

I really hate the new recoil changes... they are not helping at all. Please give us an option to keep old weapon recoil without having screenshake enabled so I dont have to feel like my monitor is sitting on a washing machine with a brick in it...

I second this. The new reticle is annoying, but I don't want to play with screenshake enabled. Please add an option to toggle the crosshair between legacy and current

[tenno_ATM]

thanks for hotfix

Edited October 15 by tenno_ATM

[Chilldrum]

Just now, Petite_Souris said:

Ok try to restart game completely

done that 15 times