I think you should completely delete the policies and tags and then recreate and apply them.
Let me know if it works for you or not.
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On a exchange 2013 I set a policy to archive the mail older then 2 years. I tag this policy to a user mailbox and start managedfolderassistant. The archiving start, move some mails but after half hour It stop. If I start managedfolderassistant again the archiving start for another half hour and than stop. If I don't force the archiving start every day but it immediately stops.
I think you should completely delete the policies and tags and then recreate and apply them.
Let me know if it works for you or not.