Firdt of, thank you for your answers…
second, the files where never offline, and I don’t think this has nothing to do with the audio.
even with one audio track it playsback stuttering, even when I turn of the video playback. it only plays right if I have audio+video together playing at the same time. doesn’t matter if the audio source is from external drive or internal… just strange. oh… and the audio plays fine in the viewer window if I have it there, it’s just doesn’t on the timeline.
Zinim.