Splitted videos


I have a problem with watching the videos on my smartTV as you can see in the picture... I changed my password for youtube yesterday and the problem occurs since then. Ist's not limited to Fitnessblender, all videos are splitted or have at least a little green, blinking bar at the lower end of the screen...

Ist there anything I can do...?

Thanks for your help...

Greetings from Germany, Julia