They are different issues. That’s the point. The timing is irrelevant here (more like that you checked your logs only now, but the problem was here for a while).
I know what exactly provoke the errors on us2 and what exactly provoke it on ap1. These actions are independent on nodes, it’s a bugs hunting.
eu1 doesn’t have these two separate actions, so it must be something third.
Please, post in the Audit falling on eu1 your findings (I need to have a full history for the Piece ID sample).