It appears that the PDM Workgroup UI doesn't understand 'internal' assemblies. Normally when I check in assemblies, it goes down the tree, and opens sub assemblies and checks in the parts in sub-assemblies that have changed. However if that sub-assembly is internal, it doesn't look inside it for changed parts.
Is this a known limitation?
Attached is a dummy assembly...
When I check in 'testassembly' it does not check in 'testpart'
I've attached an screen capture also