I wasn’t able to recreate your issue FOX99019; my test using an outdoor plug X with a device trigger “X has been on for Y” worked to turn off another device (Y - wall switch). I did find a workaround for the wall switch issue, which is to create a different self-referential device trigger rule, when “X turns on, turn on X for Y minutes” instead of “X has been on for Y; turn off X”.