Audit scores dropping on ap1; Storj is working on a fix, SNO's don't need to do anything. ERROR piecedeleter could not send delete piece to trash >> Pieces error: v0pieceinfodb: sql: no rows in result set

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).