The horrid "There may be problems with the work item type definition" error - cont.

We got the horrid "There may be problems with the work item type definition" error again today. We get it every few days while making changes to Work Item Templates.

This time we got this when changing the "for=GroupName" attribute on a Transition. The error was only happening to a user who happened to be in a Group that was in GroupName and added to GroupName individually.

We removed the individual user from GroupName and everything worked fine. Unfortunately, like the posting below, adding the individual user back into the GroupName did not reproduce the error. It's almost as if, the root cause is caching where the only way you can force the tooling to refresh the cache (sever I'm guessing as we got the same error when logging onto a new machine with the same user) is to make a change that forces the system to update some cache.