It may be TRP or another add-on.
Right-click on your chat tab, click on Settings
Click Channels on the left side bar. It’ll show you what channels are what.
Left-click on the channel you want to move, and drag it to the position you want it to be. If it’s TRP or one of those, it’s likely a broadcast channel to communicate with others who share the add-on. You may just need to drag it to the bottom of your list, and everything else will be corrected.