I have question,why sql servers which are same version. But one doesn't have problem as below, another one has problem.

I just do T-SQL dbcc shrinkdatabase and error display

File ID 1 of database ID 7 cannot be shrunk as it is either being shrunk by another process or is empty.


I checked problem on internet, there is a report to be bug. Does it apply for all builds which are same service pack?

Why there are many builds?