When searching using the relevance search, instead of results appearing I get a message:
"the search service is currently unavailable. try again later or use categorized search"
No error log is produced.
Affecting all users.
Dynamics 365 Version 1710 (9.1.0.4231) Online April 2019 updates enabled.
This has been approx 24 hours now.
Issue is only present in the production instance. Sandbox works fine, and taking a full copy of Production also works fine.
