Dynamic group not adding guest accounts

Question

Hi

I have an AzureAD where I'm using Dynamic Groups with a rule like this:

user.memberOf -any (group.objectId -in ['1111f5ee-56cf-43a6-87f5-064d63fd7230'])

Normal members are added to that dynamic group, but not guest accounts. There are no errors in the Audit logand it actually say that ythe guest account are added - but they aren't in there.

I have checked that Guests are allowed in the AzureADDirectorySetting.

Also guest invites works fine with normal teams sites.

Any ideas what is wrong. I have other tenants where it works fine.

Br. Joachim