A changed value shape in a newer build's project rules section made the whole project refuse to open, and a no-touch save rewrote sections the build does not own.
From the Grok pain-radar digest, Oct 26 2026 (8:41 AM to 11:41 AM ET digests plus Haitch morning edition). Verified live 2026-10-26: issue/PR/thread read; title and state confirmed.