Windows 10: Movies and TV app - MP4 file problem

Hello all,
Running Ver 1607;
As a result of a seperate issue, I recently changed to 'Movies & TV' app as my default in lieu of Windows Media Player.

When I play MP4 movies on my PC, the video is jerky and the audio is out of synch? Basically they are not watchable. AVI files play ok.

If I play any MP4 from my media player (windows share), it plays normally.

If I play any MP4 using WMP it plays normally.

I have run Defender and Malwarebytes (free) just to be sure and they both come up clear of any nasties.

Have I somehow got a corrupt MP4 codec in 'Movies & TV'? Is this possible?

How would I rectify this? Prefer to stay with 'Movies & TV'.

Hi there.

OK not the answer you want - but why on earth bother with WMP any more. Use VLC or a whole slew of other stuff which plays far more codecs including audio and is FREE also.

Cheers
jimbo

Hi, folks
Jimbo46 is right - VLC will do everything for your videos perfectly. One more detail: few weeks ago I decided to try Films and TV app from Store but it turned that this app can't work with DTS audio within mkv container files. So, the result - no audio... Right uninstalled and back to VLC...
Regards,
Ivan

Thanks to Ivan & Jimbo45 for some suggestions to use another media player.

Anybody else care to offer a suggestion on why Movies and TV app is not working for MP4?
Should I try to uninstall and then re install?