Been animating and encoding seamless loops for many years lately when I create animations in AE that loop seamlessly in both Premiere or AE they have a glitch at the loop when played back in Quicktime player, or VLC or any number of players.
I'm using AME to encode
If I export to Pro Res HQ and they loop in QT player fine
If I export to Pro Res LT or MP4, there is a glitch at the end. Its not the animation because I can step through and see it moving smoothly.
I can also create the loop in Premiere by butting the clip against itself several times and export in MP4 and gain proper playback
Any help is welcome
System OSX 10.12.3
Any media player is going to have a little hiccup playing looping video. Can't be helped.