What is wrong with the thumbnails ?

[GaMerdav]

Do you have problems too ? Once in a while, my custom thumbnails disappear....

 

[uberdanger]

Yeah I can't change mine on a few of my videos.

 

[Camille Montpetit]

It happens sometimes. Keep changing it and it will obey one day or another.

 

[phoenixblue]

Yeah I can't change mine on a few of my videos.

If the video already has a custom thumbnail, did you try setting it back to one of the default 3 thumbnails, saving, then uploading the new one and saving? That works for me.

 

[KoolReject]

Theres always a lag in the thumbnails.. It will show up as a thumbnail but minutes later it will vanish then come back on later.... crazy!!!