I did a ride today and tried to pause and then stop when I was done. Instead, I closed the program. The good news is my ride was saved in the ZWIFT directory but it does not show up in my list of rides on the dashboard. Oddly, the total miles I have logged includes this ride but the ride itself is not listed.
Also, it did not send to Strata automatically like it is supposed to - I assume that is because it closed before it could. Seems like this housekeeping should be dealt with before aborting the program.