After last weekend's update, you might have received the message 'Oops, your session was lost somehow.'
At the beginning of the week, the 'Restore your session' button didn't work, and you had to refresh Presenter. We have now resolved this issue, so the button works again.
Additionally, we implemented several improvements throughout the week to reduce the frequency of this message. The message is now not necessarily unexpected; the connection may drop, but restoring the session should work if you choose that option.