Hi Otis,
No I am sure I didn't. It was removed by the generator task, in my projekt the preference CleanUpVSNetProjects is set to true. The validator file of the subentity was removed every time I regenerated!
This may sound silly, but today, I cannot reproduce this problem. The validator is retained from a generation to the next. This is kind of wierd, since I don't use these validators (extended entity provides the possibility to override the members of the base class). I am really sorry for the trouble, consider this thread as done!
Best regards