Development has acknowledged and fixed defect VPR#25141 for the issue. The next releases, 7.0.3 and 7.1, contain the fix. The issue affects only MSSQL installations with version 7.0.2.
The hotfix is provided below (Attachments). Execute the attached SQL statement in SQL Management studio. After applying the hotfix, you need to run a recalculation on all M:N tables with the statement:
exec QBM_PDBQueueInsert_Single 'QBM-K-CommonReCalculate', 'QBM-K-CommonMakeWatchtrigger', '', '12345'