YouTube App - video freezes

As of yesterday when I try to play a video via the YouTube app on my Chromecast 4K the video freezes after approximately 5 seconds playing any video. The audio continues though.

After logging out of the app on all devices, a app cache reset, factory reset of the chromecast and a router reset the issue still persists. Playback on other devices still works. When I switch my profile to Guest on my YouTube app on the chromecast, also then no issue.

Any support here is much appreciated :) Thank you.