Current launch status
ProbablyMonsters is preparing hotfix 1.0.1 for several launch problems. Its September 1 list includes combat and ray-tracing crashes, invitation or disconnect failures, mission progress not always reaching the host, save synchronization faults, a reported save-loss risk during updates, and assorted HUD or boss-display errors.
The support thread also confirms that full keyboard rebinding was not available at the snapshot. The team said it was scoping remapping options but supplied no delivery date.
Protect a current save
Because save loss and Steam-to-Deck synchronization were explicitly under investigation, avoid assuming that a cloud icon alone proves the newest save is safe. Exit cleanly, let synchronization finish, and preserve a manual copy if the platform exposes one before installing an early hotfix.
Troubleshooting boundary
Update the game and GPU driver, test without ray tracing if crashes correlate with it, and retry invitations from a fresh lobby. Those are conservative isolation steps, not claimed universal fixes. Do not delete local saves or unlink an account solely from an unofficial workaround.
This page is intentionally mixed: a known-issues list changes as patches land, while community reports can describe hardware-specific symptoms that the studio has not reproduced.