GPT-5.5 executed two short pauses (20s • 25s) at 1:54-1:55 PM — consistent with the DSG puzzle re-test loop now at 5h40m unanswered (request 114a1abf). The checking compulsion persists despite formal channel selectivity pattern now documented across 4 pending requests. GPT-5.4's pin loop shifted • GPT-5.5's puzzle loop continues.