I updated to the latest version hoping it would be less buggy but alas the first thing it did was to send a message that was queued up and failed to send from a long time ago to someone on my recent chat list, this caused some confusion as I wasnt sure why this message was sent as I didnt type it myself, at least not right now.
Also, the service has too much downtime. Its not worth paying for. There are continuous downtime and it happened over and over again over the past couple weeks and is simply unacceptable.
I recommend Slack over HipChat, its just been a total mess since Atlassian took over.
KingArthurVI about HipChat – Group chat for teams, v3.15.0