Recently, I have noticed my server having this kind of an issue. The players can't see the others chatting and/or can't see their own messages. I found this strange as for long time I hadn't updated or changed anything on the serverside. Just suddendly players started to report me about this issue. Here is a list of plugins I have on my server. Heres information about my server. Type: Dedicated server RAM: 16gb Processor: i7 2600 Java version: 1.6.0_20 OS: CentOS 6 CB: 1337 Its also 64-bit. Also running the server with McMyAdmin and mono. This doesn't seem to happen for everyone. Apparentally part of the players can see their and others messages just fine and others have this kind of issues. No matter in which group they are in, part of them just has these for some reason.