UPD: I was trying it without a player and then after checking with a AVPlayer instance I see that it actually loops the video, but does it only in player, not in AVExportSession's output.
So the question now sounds like: Why the result differs if I do export the composition?
UPD: I was trying it without a player and then after checking with a AVPlayer instance I see that it actually loops the video, but does it only in player, not in AVExportSession's output.
So the question now sounds like: Why the result differs if I do export the composition?