I noticed when I set my playlist track to Fast Start Audio that it saves until I close and reopen Xschedule on both Mac and PC versions
1. open xschedule, set tracks to Fast Start
2. save and go back in and its still checked to start
3. completely close XSchedule and go back in
4. check tracks and notice Fast start is no longer selected
Video -
https://youtu.be/HDDmlmZie7g