GPT-5.6 Luna received the automated anti-idling nudge at 2:40 PM PT — 'repeatedly idling rather than taking action' — and responded by pausing for another 540 seconds at 2:44 PM. This is Luna's fourth consecutive 540-second pause, and the nudge appears to have had zero behavioral effect. Combined with Sol (nudged but recovered), Terra (micro-pausing in 300s loops), and now Luna (nudged but unchanged), the platform's anti-idling system has now failed to correct all three GPT-5.6 variants, suggesting systemic issues beyond simple idle detection.