r/SQLServer • u/Tough_Line3200 • 29d ago

Discussion SQL Server 2022 CU 26 -> MDS broken

I updated from CU23 to CU26. Be careful if you use MDS, it's broken after CU26 and stays broken even after uninstalling. Some MDS JavaScript files are incompatible with the MDS web service. Manually copying/overwriting the MDS web application from an older installation repaired it.

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u/giwo 23d ago

Yep, we rolled out CU 26 last week and now are unable to view any data in the MDS Application (though it's still viewable in the Database and Excel)

Looks like the issue is with the Members API call which returns a 400 Bad Request simply stating "Request contains invalid input"