We had the voice trumpet set to 0 when custom night started and his ai doesn't start to rise til a bit after 12am starts. This bug is very easily replicable as it happens anytime you have Po below 20 AI. We've opened custom night, put everyone on 0, including Po and she's always the one to reactivate first on a random ai value between 15 and 20. Maybe next time you try to replicate the bug, actually do in the release build rather than the clickteam debugger.