Livetraker do NOT use any codec audio/ video , these are managed by your system, NOT by Livetraker.
If a video track doesnt play, 99% you are missing a correct codec because Windows Computer codecs are incomplete (even into brand new Windows 11 notebooks…)
To solve the issue just download a good codec Kit.
We strongly suggest this:
(totally free and very stable from years)
After installation you’ll see all your videos playng correctly