In DataAccessAdapterBase, in FindPkObject, the original code is:

EntityBase2 currentEntity=(EntityBase2)entitiesWithHash[i];

My altered code is:

IEntity2 currentEntity=(IEntity2)entitiesWithHash[i];

I believe there is no change in functionality. However, the original line was breaking my interface-based solution (Wrapper design pattern).

Any chance you can change this (if I'm correct about the functionality not changing)? Thanks.

Looking at the code it indeed isn't necessary to use the base class. I'll change this in 1.0.2004.2. That will indeed fix a hierarchy fetch problem.