The fault is pack-independent (fired on the retail preset, 1080p, 45 s,
first launch after a build), ~1 in 57 offline runs today, never under a
debugger (46 runs), no WER/event trace on this machine. The pre-campaign
binary cannot be measured with this gate (no in-process close verb).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>