Finale 2020 on Windows 10.
The options for repeats and the d.c. have for over a decade been totally bewildering to this user.
1. When I select the "d.c. al fine" designation, playback ignores it, simply terminating playback, no matter what parameters I choose.
2. When I add a repeat at the end of a piece, playback returns to the beginning of the piece as instructed. However, if there are smaller repeated sections within the piece, I generally want playback to use both endings each time they are encountered. I've never been able to make this happen.