[Luke M]

I've reported the audio sync issues as a Kodi bug if anyone would like to add to this thread.

https://forum.kodi.tv/showthread.php?tid=343831

There must be something that can be done within Kodi as MrMC doesn't have the same problem:

Try this A/V sync test video:

https://www98.zippyshare.com/v/5fdVv2pv/file.html

On my setup it's in sync. I'm just wondering if it's something peculiar to the files you're playing.  

This is so incredibly beguiling. This file appears to be in sync, but everything else is out by 300 milliseconds. I'm onto my second stick now, and the outcome is the same.

Upload one of your problem videos, I'm curious to try it. (You can truncate the video with ffmpeg if necessary).

Have you tried old versions of Kodi? Like 17, or 16. If old versions work, it would help the developers if you could identify the version where the problem was introduced.