I noticed that my videos that are auto uploaded to strava never play in full when I go check them inside strava. Videos play up to half or a bit more in the “progress bar” at the bottom of the footage and then freeze or restart. Sometimes if I drag that progress bar to after the point of freeze it does play the rest. Sometimes it doesnt and just freezes.
Not sure if this is an issue on Zwift side or Strava side.