Could it be something to do with the migration to V6?i'm not sure. do you still have a copy of the old 5.2.2 DB? if so, I can give you a script to check if sig docs existed for a particular spec.
Where do i check the workflow to see if signature requests are turned on?in the workflow, if you have a user defined in the signature requests grid
Is it possible to somehow turn the older versions signature documents back on or is it likely they didn't exist in the first place?There is not an old vs new. if you have a copy of the 5.2.2 DB, then we can check if the data matches.