dynamic groups with direct reports are no longer updating

Hello,

Is anyone using the Direct reports for dynamic rule  in their organization without issues? Recently, we noticed a lot of our groups being outdated and the workaround is to change to static and then back to dynamic with the same rule. We had this exact issue 6months ago and Microsoft suggested that it was related to the fact we were using '' instead of "" although the same workaround worked for ''. All groups were updated to "" and worked until recently when we started getting a lot of reports of groups being outdated.

Thanks