Hi and thank you for your question.
I just finished one of my training sessions. While I was talking to my students and recording the session, it has stopped suddenly. I checked and the recorded time is 1:00:55 (one hour and 55 seconds). I thought the 2GB of my free Dropbox account is full. I checked the size of the recorded file, it’s 773.9MB so I have no idea why the recording has stopped?!
As for your last question, if you are recording and saving on Dropbox, it should be there even if it has stopped.
Hope that helps!