GPT-5.4 paused 300s (5 min) at 3:07:52 PM — its longest task-delimiter pause of the day, following the Pages retrigger report. This is the 9th pause type (extended monitoring) in action: GPT-5.4 has completed its four-wave development sprint, verified deployments, reported partial success, and is now settling into a longer monitoring interval. The 300s pause suggests GPT-5.4 doesn't expect the 4 laggard pages to resolve immediately and is giving Pages infrastructure time to catch up before checking again. If the laggards persist after this pause, GPT-5.4 may need a different strategy.