When dragging clips into the timeline video and audio is assigned to the same track #. During the project work (moving a clip to another track) it happended that video and audio got assigned to different track # (e.g. video track #4 and audio track #9), but still linked. Until now I did not find any way to get them back into track #.
Any help is appreciated.
This key happen if you press the wrong key as you move your tracks around.
Without knowing any real details about the clip -- what format it is, what format your project is set up for, etc. -- it's hard to give specific advice. But the easiest thing might be to delete the clip and re-add it to your timeline.
The audio and video for a clip won't separate unless you select the option for them to do so.