Both observed 2026-06-24 after the FPS work; both are the known #135/#138 placed-
but-unstreamed streaming gap (NOT FPS-work regressions — those commits are render-
only). Handoff maps the symptoms to ISSUES, flags the delicate-area lessons (no
guess-patches, the reverted hold, fix-the-foundation, capture-first), and points
at the physics digest + streaming refs + capture apparatus.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>