40.0.4|Oct 23, 2025
View on Warframe Forums↗The Vallis Undermind: Hotfix 40.0.4
3/5 Moderate
Archimedea loadout variety and Deepmines progression fixes headline this hotfix, alongside a speed buff for Arbucep missiles and Oberon performance tweaks.
Key Changes
- 1Fixed Archimedea loadouts being identical for all players (effective next reset)
- 2Fixed Deepmines Bounties not counting toward Nightwave 'Mission Complete' Acts
- 3Fixed Acolytes teleporting players into locked rooms in Deepmines
- 4Increased Arbucep homing missile speed for better Railjack performance
- 5Fixed Oberon's Renewal healing defense crystals in Tyana Pass
- 6Resolved performance issues in the H-09 Efervon Tank fight
- 7Fixed a crash occurring when aborting Deepmines bounties in the elevator
- 8Fixed Nightcap weekly purchase limits failing to reset
- 9Corrected Nokko reviving outside of map boundaries in Deepmines
- 10Fixed TennoGuard 2FA login crash
All Changes
🛡️Warframes(7)
- changeQorvex: Adjusted the Qorvex Scarophago's helmet opening animations based on artist feedback.
- nerfOberon: Fixed Oberon's reworked Renewal being able to heal the Crystals in Tyana Pass mobile defense (effective nerf).
- fixOberon: Fixed performance issues caused by Oberon's Hallowed Reckoning VFX.
- fixOberon: Fixed a script error caused by Oberon's Renewal.
- fixNokko: Fixed an area in the Deepmines where Nokko could revive himself outside of the map.
- fixNokko: Fixed a script error caused by Nokko's passive.
- fixStyanax: Fixed a script error caused by Styanax's Axios Javelin.
🔫Weapons(2)
- buffArbucep: Increased Arbucep's homing missiles speed to ensure they can hit enemies in Railjack missions.
- fixTenet Arca Plasmor: Fixed Tenet Arca Plasmor's hologram VFX not using custom energy colors.
🗺️Missions & Bounties(7)
- fixDeepmines Bounties: Fixed Acolytes being able to teleport players into locked rooms in Deepmines Bounties.
- fixArchimedea: Fixed an issue where almost every Tenno had the same Archimedea loadouts (fix active next weekly reset).
- fixDeepmines Bounties: Fixed Deepmines Bounty missions not counting towards 'Mission Complete' Nightwave Acts.
- fixDeepmines Bounties: Fixed Acolyte spawn timer not resetting when playing Steel Path Deepmines bounties back to back.
- fixDeepmines Bounties: Fixed assassination target names in Deepmines Bounties being displayed in the host's language.
- fixDeepmines: Fixed various ceiling map holes in the Deepmines tileset.
- fixGrineer Galleon: Fixed an indestructible fan having the sheen of a destroyable item in a Grineer Galleon spy vault.
💻Performance & Stability(3)
- fixH-09 Efervon Tank: Fixed performance issues caused by VFX in the H-09 Efervon Tank fight.
- fixDeepmines: Fixed a crash that could occur when aborting a Deepmines bounty while still in the elevator.
- fixTennoGuard: Fixed a rare crash that could occur when logging in and triggering TennoGuard 2FA verification.
🖥️UI/UX(6)
- changeEnd of Mission Screen: Increased the sorting priority of mushrooms in the End of Mission screen.
- fixNightcap: Fixed Nightcap's weekly purchase limits not resetting properly.
- fixNightwave: Fixed players seeing negative Nightwave Standing in the End of Mission screen.
- fixUI: Fixed opening Chat linked items while in the Mod Screen resulting in a transparent background.
- fixHelminth: Fixed a [PH] tag appearing next to the 'Donate Amount' sort setting in the Feed Helminth menu.
- fixUI: Fixed opening a notification while viewing a profile resulting in UI layering issues.
🎨Visual Updates(4)
- fixThe New War: Fixed the Transference Chair having incorrect placement during a segment of The New War quest.
- fixLua: Fixed intense flickering in the sky of a Lua tile.
- fixDecorations: Fixed an unintentional change to glass textures on various decorations.
- fixRelay: Fixed some minor lighting issues in the Relay.
Summary
Hotfix 40.0.4 focuses on critical stability and progression issues within the Deepmines and Archimedea systems. Key updates include fixing the lack of variety in Archimedea loadouts (effective next reset) and ensuring Deepmines bounties correctly contribute to Nightwave progress. Additionally, several Warframes received script and performance optimizations, most notably Oberon and the new Warframe Nokko.