Update 6 (2026-09-21) officially addressed this windows issue: Part of an installed window is missing after loading. If it still occurs after updating, treat it as a possible regression or different cause, not a guaranteed repair of your existing save.
Match the symptom
Part of an installed window is missing after loading.
Check before changing your save
Identify the missing frame, pane or attachment and compare the window objective.
- Confirm Steam has completed all available updates.
- Identify the missing frame, pane or attachment and compare the window objective.
- Avoid dismantling intact windows before isolating the affected installation.
Official fix versus your current save
The developer's Update 6 note establishes a historical fix for this symptom. It does not publish a universal recovery command or prove that a previously damaged save will repair itself. This guide has not independently retested your save.
Recovery decision
Avoid dismantling intact windows before isolating the affected installation.
- If the installed game is older than the named patch, update and retest the same action.
- If the issue persists, try an existing known-good save without overwriting the failing one.
- If it repeats, report windows, the exact objective, installed build and reproduction steps to the developer's Steam discussion board.
Your checklist
0 / 4Saved on this browser only. No Steam connection.
Sources & build scope
Full release · official patch notes; not a local gameplay retest. Source review is separate from a gameplay test.
- Gray2RGB: official announcements ↗Tier A · Launch through Update 6