Today my 30.55 mile ride locked up but ended up saving. The screen froze at about 14 miles but the ride was still progressing in the background because I had to shift a few times when climbing so I could sort of tell where I was. I had to kill Tacx app using Task Manager then reload Tacx app and the ride was saved. Distance, Time, Average speed, and climb are correct. Charts are screwy after 14 miles.