MPC movie playback - picture stay still but sounds start

I have noticed on several computers that when I stop the movie playback (all formats film) for a longer period of time and start it again, the picture stays still, only the sound starts again.The only way to fix this is to restart the program completely

That is likely a problem with the graphics driver. Hibernate/sleep can break playback.

You can use this option:
MPC Options > Advanced > ReloadAfterLongPause

I don't usually use hibernation. Nor do I sleep when I'm faced with the error.

The problem is outside of the player, so I can not fix it.

Use the option I mentioned above.