I have this problem on my machine in the office and on my machine at home as well (both VS 2019). I cannot run any newly added unit tests.
Tests that have been added prior 2019.2.2 are still being executed nicely. So when I run all tests, existing tests run, all new tests are ignored. If I try to run a new tests seperately I receive this error (System.InvalidOperationException: Cannot transit from status Running to a final status):