TypeMockException after upgrading to 4.2.2

After upgrading from 4.0.1 to 4.2.2 several tests fail with a TypeMockException. I have recreated the problem in the small test example below.

        [TestMethod]
        public void FactoryTest() {
            MockManager.Init();
            Mock factorymock = MockManager.Mock(typeof(Factory));
            factorymock.ExpectAndReturn("Create", new StubForTypedComplexClass(), typeof(ISpecific));
            IGeneral<ISpecific> i = Factory.Create<ISpecific>();
            MockManager.Verify();
        }

    public static class Factory {
        public static IGeneral<T> Create<T>() {
            return new ComplexClass<T>();
        }
    }

    public interface ISpecific { }
    
    public interface IGeneral<T> { }

    public class ComplexClass<T> : IGeneral<T> { }

    public class StubForTypedComplexClass : IGeneral<ISpecific> { }

This is just dummy example code, but it does reproduce the problem. When run the test fails with the exception below:

Test method FactoryTest threw exception:  TypeMock.TypeMockException: 
*** No method Create<ISpecific> in type Factory returns StubForTypedComplexClass.

This works fine with 4.0.1.

I can mail the log files if you need them.

Regards,
Brian