Active Directory Group. Only One Group. Problem when User is in a Sub-Group

I added the Active-Directory integration. That Works fine.

But when I add Groups, A User can only be a member of one single group. Not Two Groups like VPN, Exchange.

And when A User Ist Member of  Group 1 and this Group 1 is Member of Group 2, and I Add Group 2 to XG Firewall, It doenst work.