Teams Groups not showing in Outlook

This is after running:
Set-UnifiedGroup -Identity MyGroup -HiddenFromExchangeClientsEnabled:$False
twice.

When I convinced my M365 admin to run this command on about 20 groups, some of my groups showed up like I would expect in Outlook, but some didn't show (approximately half), even after they ran it twice. It appears that the ones that didn't show are consistently older groups, but that shouldn't affect anything, right?

While testing on my dev M365 organization, I found that repeatedly running that same command over and over, while refreshing to check Groups on the web would eventually get them to show up (though time did not appear to be what made them eventually show). However, I can't ask my admin to just keep running this command over and over until all Groups show up. Is there some other way to do this that is a little less flaky?

Thanks!