Error Saving class rule to Branch
I am using version 7.2. When I try to save a class rule to a branch I get the error: This instance already exists. The Class rule is not in my branch.
It was easy to reproduce the problem in version 8.6 on pega academy. I used the Senior System Architect mission and the Skimming a ruleset challenge. In the HR Apps 01.01.01 application I added a Branch named BRc. Saved the application rule. Opened the TGB-HRApps-Work-EmployeeEvaluation Class. Tried to perform a "Save As" to BRc branch and got error instance all ready exist. See screen shot. I checked the class is not in BRc.
I have read article SA-31013 which writes about this issue. And HRApps:01-01-02 was unlocked and then I tried it with HRApps:01-01-01 and HRApps:01:01:02 unlocked. Same Results.
What is it I don't understand?