I did not detect the same problem prior to the conversion, however I did not fully utilize OC at that time as I knew a conversion was pending. It was only tested a couple of times, but I don't believe the problem existed. I understand the conversion is from ANSI to UNICODE format. I do not have the option of reverting to ANSI format.
I have tried a couple of different primary key settings statements, including a simple "Select "1'"" in order to test with a single record. The current statement is "Select newid()". I have also used "select hash(now())". The same error consistently occurs.
The primary key is assigned to object_id. The other two mandatory keys are owner_id and object_type, select ("david") and select("object") respectively.