The First Descendant Hotfix 1.4.5b Targets a Trials: Protocol 001 Bug
The announced workaround calls for showing only Trials: Protocol 002 until the multiplayer portal issue is fixed.

Hotfix 1.4.5b for The First Descendant addresses a multiplayer problem in Trials: Protocol 001. When two or more players enter the mission, the portal disappears once one player enters the Commander stage. The announced workaround is to display only Trials: Protocol 002 until the issue is fixed. The restriction comes one day after the October 15 update, which introduced Protocol 002 as a second Trials dungeon alongside Protocol 001.
The Steam announcement scheduled the hotfix for October 16, 2026, at 04:40 PDT on Steam, XBOX, and PS5. It does not require a client update. Players who were already in-game were told to return to the title screen and reconnect to apply it.
The First Descendant Hotfix 1.4.5b Patch Notes
Patch Date
- PDT 10.16.2026(Fri) 04:40
Platforms
- Steam, XBOX, PS5
Patch Details
- A temporary measure has been applied for an issue where, when playing the “Trials: Protocol 001” mission with 2 or more players, the portal disappears once one player enters the Commander stage.
- ㄴ We are currently investigating the exact cause, and only the “Trials: Protocol 002” mission will be displayed until this issue is fixed.
How would the temporary Protocol 001 restriction affect your group’s Trials plans? Follow us on X, Bluesky, YouTube, Instagram, Steam, and Telegram for coverage of how the portal issue develops.
The First Descendant
Developed by Nexon Games





