If the game crashes at startup or flickers after patch 1.6.2, update to official patch 1.6.3 first. The hotfix targets a GPU-related startup crash and may also resolve flickering or other visual issues. If acid or another lab item seems not to register, update first and target Aldous's glass itself; the official patch increased that glass hitbox. Record your platform and build before trying anything else.
Update first, then aim at Aldous's glass itself. The official patch increased the glass hitbox. If the Notebook does not open at the expected time, retry after updating before restarting the chapter.
Replay a chapter for achievement cleanup
After finishing the story, open the Notebook or journal and choose the chapter you want to replay. Use chapter replay to retry a missed optional action without starting a new weekend. It is a cleanup route for achievements, not a promise that a damaged save file can be restored.
Source-backed · S51 · S52 · Last checked 26 Aug 2026Not reproduced yet
- 01Missing matches or cloth Needs verification
Separate player reports describe a missing cloth or missing attic matches. The official launch notes cover missing inventory and save recovery, but the current platform/build combination is not reproduced here. Update first, do not reset the save, and record the scene where the item vanished.
- 02Android eye drops, coffee, or scene rollback Needs verification
Several Android reports describe eye drops working once, coffee disappearing, or progress returning to an earlier scene. Treat this as a possible save/inventory issue, not a puzzle answer; preserve the save and record the app version.
- 03Acid or another item will not apply Community reported
Players report that tapping fails in some mobile interactions while dragging works. Test tap and drag on the current build, but do not present the interaction difference as a universal fix.
- 04Day 2 Night Cellar Bug Replay pending
Community report only. Reproduce on the current build with the platform and cellar checkpoint recorded.
- 05Startup crash or flickering after 1.6.3 Replay pending
The official 1.6.3 hotfix targets a GPU startup crash introduced after 1.6.2. If the symptom remains, record the GPU, operating system, platform, and exact build before looking for a new workaround.
- 06Exercising with Mr. Aldous not unlocking Replay pending
Confirm the repeated-click trigger, platform sync state, and whether the achievement appears after leaving the scene.
- 07You Found Him clock conflict Conflicting reports
Keep 3:05 and 4:05 visible until a replay or independent confirmation resolves the difference.
- 08Fatal Error: failed to launch file il2cpp Needs verification
A recent Steam discussion reports this error after returning to Day 3, even after file verification, Windows updates, and driver updates. No Servant of the Lake-specific fix is confirmed; reproduce it on the current build and record the GPU, Windows version, platform, and launcher log before changing files.
A safer support checklist
- 01Write down platform and version.
Steam, iOS, or Android; include the build shown by the store or launcher.
- 02Check for the latest official update.
Use 1.6.3 for the startup-crash and flickering issue, then keep the earlier 1.6.2 fixes in mind for saves, missing items, and achievement sync.
- 03Separate the symptom.
Is the save slot missing, is an item gone, or did the achievement fail to sync?
- 04Capture evidence before changing files.
Screenshot the slot, item state, or achievement page. Avoid overwriting the affected save.
- 05Use the official support route.
Link to the developer’s latest news or store support rather than promising an unofficial repair.
Launch issue types
- GPU startup crash after 1.6.2
- Flickering or other visual issues
- Save-file corruption or missing progress
- Missing items after launch
- Achievement synchronisation
Check the store build
Apple's listing currently shows iOS version 1.7, while mobile patch timing can differ from Steam and Android. Check the platform-specific latest build before replaying a broken scene.
Official / mobile source · S49 · Last checked 26 Aug 2026Save and sync questions
What launch problems were officially mentioned?
Official launch news mentioned save-file issues, missing items, and achievement synchronisation problems, followed by fixes.
What did the 1.6.3 hotfix fix?
The official hotfix targets a GPU-related startup crash introduced since 1.6.2, may also fix flickering screens or other visual issues, increases Aldous's alchemy-glass hitbox, addresses notebook timing, and changes Steam API handling for achievement unlock reports.
What did patch 1.6.2 fix?
The official notes list fixes for missing Notebook data, Day 2 Hunt bullets, Day 3 cat zoom, Closing Dinner progression, Steam Deck rumble, the reset button, and launcher or window-state problems.
Should I overwrite the affected save?
Avoid overwriting it before capturing the state and checking the current official patch/support guidance.
Are mobile fixes identical to Steam fixes?
Not necessarily. Keep the platform and store build separate when diagnosing a mobile issue.
Can I replay chapters after finishing the story?
Yes. Public walkthrough references describe using the Notebook or journal chapter selection to replay a named chapter and clean up missed achievements. Treat this as a replay route, not a save-repair method.