@YouTube why is your AppleTV app so, so bad? I have super fast fiber internet. I should NOT have buffering problems. But, as always happens when regular videos are so slow to load if they play at all, the ads have no problems. Do better.
Thanks for your report, we’re continuously working on improving load quality and making the viewing experience better for both ads and videos. Definitely send a feedback report if you notice this again: https://yt.be/help/BFr5