I am getting the following error when running a migration from TFS on-premise to Visual Studio Online
OpsHub-012010: Processing blocked - earlier event(s) for entity 11888 have to be processed first.
This is the second time i am trying to run the 'source control' migration on the same project. I got the same error the first time after 3700 changesets. This time it happened after 5300 changesets.
I also tried to flag the Failure item for a retry and rerun the process, but I keep getting the same error.