My D365 Outlook add-in search box (for Set Regarding) has stopped working recently (Jan.2019):
When I enter some text, the result box populates briefly, then empties, and I'm left with the message
"No records found. Create a new record."
Even when the search should give many results.
I can track successfully if the required 'Regarding' item is already shown in the panel before attempting a search.
If I just click the 'search' icon without typing anything in the search box, I get a (correct) list of all items of the selected entity, but if I then type anything in the search box (e.g. 'A'), the result list disappears, with "No records found", whatever type of entity is selected.