we have the somewhat strange behaviour, that certain colleagues can communicate with everyone in a group call, but some can not communicate with certain others, e.g. member 1 & 4 can listen and talk to everyone, but 2 cannot communicate to 3, while both can communicate with 1 & 4. This was so with Meet 1.2 and is still so with 2.1! LDAP parameters are correct, already checked by Univention support. Any idea?