I'm tracking that bug down, will push an update when I figure out what's causing it. For now, reload lua with Ctrl+L and it should be ok.
To send messages in the respective channels, make sure to enable the experimental feature under configuration, and then scroll back up to select the channels you want to enable it on. Try to enable it on less channels; each additional channel will add a delay to the addon sending messages from any channel.
To send messages in the respective channels, make sure to enable the experimental feature under configuration, and then scroll back up to select the channels you want to enable it on. Try to enable it on less channels; each additional channel will add a delay to the addon sending messages from any channel.