Hi,
I don't have much experience with CA SCM but the release notes do seem to indicate that CA was addressing similar issues
CA Software Change Manager r12.1.03 Published Fixes
https://communities.ca.com/web/guest/admin?contentID=da7ec9af-5201-44f6-...
Listed below are fixes included in the latest release for CA Software Change Manager R12.1.03. CA SCM R12.1 Service Packs are cumulative and includes all fixes to the core product previously published.
CA SCM R12.1.03
8672 - r12.1 SP3 - PERFORMANCE PROBLEMS IN WORKBENCH
8687 - r12.1 SP3 - CANCELLING CHECKIN DESC CLEARS SYNC
8689 - r12.1 SP3 - HSERVER MEMORY USAGE INCREASE
more at the link above...
I will tweet this out and see if some other folks have seen this issue
Bob Aiello
Technical Editor, CM Crossroads