Minor Description
When running regression tests for atl:CImage we see about 85 of these entries. It is obvious that if we try to find GreGetObjectOwner for a NULL, this will fail and sending a message to the debug log seems pointless for this case.
I have also seen this same spam when testing nlite in CORE-16435. This should probably be demoted from a DPRINT1 to just a DPRINT. I created a VB6 test program to test the font problems in the referenced issue and it shows this same spam.
Also, other regression tests show this same spam such as gdiplus:image which has over 200 of these messages.