Playback slows down and chatters

I’ve opened up several songs in the latest Version 9 that were originally created in Version 7.1.2. All have played back well in Version 7.1.2. In Version 9 they play for about 20 seconds or so and then begin to slow down and skip and “chatter.” I’ve increased the buffering to Very High, but it still does does not playback correctly. Why would this be happening and how might I correct the problem? Thanks for any help!

Ron,

we’ve released an update (9.1.5 build 4763) that fixes an issue with step sequencer tracks making the song progressively slow down. Please try if the problem occurs with the latest build, if not please contact us at support@ntrack.com with more details on the issue, and possibly a screen recording that shows what is happening.

Flavio.