Pro Tools 2018, Mac 2012, High Sierra,10.13.6.

Issue just started. I heard an odd distortion on playback In Pro Tools 2018 while using 8 iterations of Aria player and Jabb3.

When I isolated a track  (trombone and trpts, not tenor sax) they make gurgling sounds like cutting in and out. When I did a manual trigger it did the same thing. Erased midi pitch bend and volume events and it still happens.

Please help.

Thanks Tim N