I recently purchased Zoom and set up recurring meetings. I thought I would test it but when one participant tried to go in, it said I was in another meeting and they can't get in. Also, it gave me the option to leave the meeting but not end the meeting. What am I doing wrong?

Hello. I've just started using Zoom Chat (on it's own, not chat within meetings). I am trying to download the chat thread between myself and one other person. I have followed the instructions 'Viewing and downloading stored messages' found here: https://support.zoom.us/hc/en-us/articles/210615143-Viewing-stored-chat-messages#h_01EH7ZDWV7DTADVGW5Y8SV472A. But no  chat history shows up for me to download (I put in the right date). 

Can anyone explain to me the easiest way to download messages from a Zoom Chat thread (not in-meeting chat messages)?

Thanks 

I host a number of sessions and have been finding recently that there appear to be more and more participants in the meeting experiencing issues joining the breakout rooms. They can see the invite and when they click on it, it doesn't work. I have read that Chrome OS and Chrome books do not allow participants to join breakout rooms but wondered if there are some other common known reasons for this happening?