Hello, While testing group chat via IMC module, we found that owner of a chat room could not destroy the room or invite new users to a chat room after few message exchange. We had modified the code at “imc_cmd.c” to fix this issue. Fix, member->flags &= ~IMC_MEMBER_SKIP; à member->flags &= ~(IMC_MEMBER_SKIP); where ~IMC_MEMBER_SKIP is defined as ‘#define IMC_MEMBER_SKIP 1<<4’. Here ~ takes precedence over the << operator. With this fix the owner of the chat-room is able to invite new users during a chat and destroy the room. Regards, Shankar