Hi Patrice,
I wouldn't say that anything is "failing". The C-MOVE gets a response with status 0xb000, "sub-operation complete - with one or more failures". I do not get a stack trace. When I use dcmtk `movescu` to perform the C-MOVE, it gives an identical message.
I can fix the problem for the specific SOP Class by adding it to SOPclass.py.
I'm looking for a more flexible solution to be able to retrieve any DICOM, regardless of its SOP Class. I'm still trying to figure out how to do this...
Thanks again for all your help,
-kevin