I've had this trouble on and off with more than one version of OSX.
Basically what happens it that I will start-and-stop during a video to take notes. And at some point when I try to restart again I lose the sound. The only way I can fix it is by completely restarting VLC, then manually finding the video I was playing,and manually going to the place I left off at.
I love VLC because the keyboard controls are sooo much easier than Quicktime, advancing forward or backward in 10 second intervals; they really allow me to skim through or speed up a slightly slow video. This convenience has made VLC my video player of choice for better than a decade.
Until now. I m Running OSX 10.11.6 and using VLC 3.0.10. I've searched the forums and can't find a solution, so I thought I'd post here and see if anyone else has had this problem.
Thanks in advance!