Hi there, could you try deleting and reuploading the thumbnails to see if that helps fix the issue? Keep us posted.
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Thats the problem, i dont have hem anymore, but will try to do something i guess
End of conversation
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Sounds like a yt employee cleaned the cache trying to solve a problem an deleted all thumbnails older then a month
I do believe I still have all the thumbs I made for you 
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Yagh i guess i will need to check all my videos next week :D
End of conversation
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Same here
Thanks. Twitter will use this to make your timeline better. UndoUndo
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