I am finding that several group chats are no longer functional after yesterdays unscheduled maintenances . Notices are going out as normal , but no one is able to post in the chat group. I checked and rechecked all settings and everyone should be able to chat at will in the group . I have also learned that our group is not the only one with this problem . We have a large group and at first I wondered if it wa s all large groups , but I se e that there are groups with many more members than ours who seem to be unaffected by this problem , so I t does not seem to an issue with group size . Does anyone ahve any insight into what can be causing this problem?? Our group is a business oriented groups and we depend heavily on the ability of members to use the group fo rsupport