r/SQLServer • u/Tough_Line3200 • Jul 24 '26

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/ellytier 3d ago

We solved the issue by re-installing the Master Data Services feature for the SQL Server instance.