Summary
The history tables grow excessively large and can cause baselining to fail - this applies to all versions from 10.33 CUP5 to 2019.05
Error
This issue is QCCR1H127376. More details about the CR are available here https://support.microfocus.com/kb/kmdoc.php?id=KM03512489.
Fix
Please download the hotfix and follow the readme instructions - Hotfix