During debug testing, particularly when there are multiple analysis changes, the _$$_TRSVAL files are left and cause errors. Also old integrity constraints don't get deleted or updated. These problems cause errors in integrity checking and in WDModfic.
Running WDModfic on the data bases cannot clear these items. The only way I have found to clear them up is to delete the _TRS and _System folders for the server, as well as all hidden folders for each database. Then run WDModfic to apply new constraints.
I would like to suggest a tool that will clear out _$$_TRSVAL files, all constraints and then reload the constraints.
This suggestion has been registered with PC Soft and submitted to developers.