Are other members on at the same time as you when you view that you're active? Perhaps they are just not talking?

All chats from every channel should always appear in your General chat log. If you want specific logs, you can create them by clicking on the little plus sign icon beneath the chat log. You can define what chats are able to be shown in the new log you're creating, as well as name it.

If this isn't working, then as Snugglebutt suggested, perhaps a screenshot will help.