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I uninstalled the Expense Agent (Preview) for Germany. No effect.
I then uninstalled the Expense Agent (Preview) with Data Deletion. SUCCESS!!!!!
There 2 previews were automatically installed with 28.3
It was the Global Expense Agent (Preview) that broke us. 28.3 brought a bad preview with it.
I happened to stumble on "Issue ID 6546294: Expense Agent is currently unavailable in the Germany region" and thought that I rip them out in case it was them.