What v0.5.4 changed
- Edit the last placed filter directly instead of replacing it blindly
- Affected Tier 5 saves should repair automatically
- Red blocks can be removed in deletions of 256 tiles or fewer
- A deeper red-block fix remains in progress
Patch notes
Sandustry v0.5.4: Tier 5 Repair and Filter Editing
v0.5.4 is the build that repaired the Tier 5 softlock and red-block issue, and it made filters editable instead of forcing a blind replacement.
Tier 5 repair
Filter editing
Red block removal
Verified against v0.5.5 on 2026-08-20
Official source
What to Do If Your Save Is Affected
The developer says affected Tier 5 saves should repair automatically. The steps below cover the cases that still need manual action.
Update and confirm the build
Install v0.5.4 or later, then the affected save should repair automatically. Only skip the update if you are already past the affected Tier 5 stage.
Delete in small batches
Red blocks respond to deletions of 256 tiles or fewer. Delete in chunks rather than one large selection while the deeper fix is pending.
Still Stuck?
If your save does not repair, keep the version and save intact and follow the diagnosis order on the v0.5.5 notes.