Inheritance of NUNIT Tests seems to be broken in latest version

<TestFixture>

Public Class DEF

   Inherits Class ABC

...

End Class

When running tests using R#, class ABC tests are never run when running DEF. Also, if a test method is marked as Ignore() in ABC, the method that overrides it in DEF doesn't run even though the method in DEF IS NOT MARKED AS IGNORE - Unit Test Sessions screen complains it is Ignored in DEF which is not true.