I had previously posted this but then deleted it when I thought that maybe I was just doing something stupid and would repost it if it happened gain.
So I'm running Studio in Docker and I can add a connection under MyConnections and everything is fine. I can switch between connections and I can open a new browser window and see the connections. After about 24hrs if I open a new browser window the connections are gone. I sill had a browser window open previously and the connections are still there and I can switch between them. I have not restarted the docker container during this time.
I don't know exactly which version. It's not the latest. I pulled the image a couple of months ago.