[sorry for slow reply - ongoing broadband issues]
TBX open on my MBA seemed stable. Paul’s observation is pertinent as a reminder that when changing from rules to more controlled methods, you want a to-do note to do clean up the rules. An agent query for $Rule (i.e does this item’s $Rule have a non-default value) should find them all and an action of $Rule=; (reset the rule) should fix the issue. I do note you have an agent in your ‘PrepWork’ container. The title is in italics normally implying this is an alias but I can’t find an original elsewhere in the doc (looking at the XNML source it is not marked as an alias.