I have a V12.3.9 system where CAU has been executed on some agents. When I clone, restore and upgrade the V12.3.9-DB to a new V21 system, it works fine with the V21 server processes, even newly installed V21 agents connect flawlessly with the server. BUT: the V21 agents get immediately and automatically downgraded to V12.3.8, because that is the release that the server knows. The server insists on up- or downgrading an agent to the last version of the CAU that has been executed on that agent. My first idea was to delete all CAU packages in V12.3 and than clone the DB. Well, deleting CAU-packages doesn't mean that they are gone. Parts of the packages still exist as objects in C0000 and they still appear in the dropdown list under "Upgrade Agent" (see screen shot below), even if I delete all CAU related objects in folder "PACKAGES". And even if the V21 agent doesn't get downgraded anymore, it's beeing displayed as a V12.3.8 agent in the system overview.
Does anyone have an idea how to get around this? How do I get rid of all CAU information the server stored "somewhere"?
Screen shot of a system where the Windows CAU package and all related objects in client zero have been removed: