top | item 36445400 YouTube is testing a new feature for A/B thumbnail testing 1 points| rtavares | 2 years ago |theverge.com 1 comment order hn newest eimrine|2 years ago That's why my thumbnails are different on my devices sometimes! But it just does not work to click preference of mine, all Youtube I consume is several-hours long lectures and my choice never depends on thumbnail.
eimrine|2 years ago That's why my thumbnails are different on my devices sometimes! But it just does not work to click preference of mine, all Youtube I consume is several-hours long lectures and my choice never depends on thumbnail.
eimrine|2 years ago