A Signex project file saved with a UTF-8 BOM opened as an empty project and would have been replaced on the next save, and merge-conflict-marker files also opened empty.
From the Grok pain-radar digests, Oct 27-28 2026 (Oct 27 8:41 AM ET through Oct 28 7:41 AM ET digests plus the Haitch editions). Verified live 2026-10-28: issue/PR/thread read; title and state confirmed.