As the title states when I have the chat menu collapsed I don’t seem to receive any chat messages from /say /map & /guild (I haven’t tested others or whisper) This doesn’t appear to be the case all the time.
Usually it will show me old chat (could be up to an hour old). This old chat doesn’t move, so it isn;t trying to catch up, it just picks a random section of old chat and presents it.
If I open the chat menu so the tabs are showing then the chat is 100% up to date. It just doesn’t update if chat is collapsed.