In game videos I encountered (animated intro and animated tutorials) freeze somewhere in the middle. Only the picture freezes, sound continues as normal. After a while the video unfreezes and plays till the end; without audio. I tried recording the issue and what do you know, I only got a tiny barely noticeable freeze.
I know it's prolly a terrible report, I'm happy to provide whatever else is necessary, I'm just in a hurry to get back to the game, cuz it's awesome!
Launch game for the first time, watch intro, intro freezes.
Watch any tutorial, it freezes.