I have periodically experienced blank thumbnails on certain videos. I was able to fix this by having a 2 to 3 second static delay on the first slide before the animation started. My outsourcer told me none of his other clients on Pinterest have experienced this issue. However, I have checked out a few other accounts that had this same issue.
What other remedies are there on Pinterest to correct this issue?
Blank thumbnails are caused by a slight delay before your video animation begins playing.
You can remedy this by adding a video cover to your video at the time you upload it to Pinterest.
I've included an image where you can find this feature inside your pin uploading editor below.
I hope this helps! 🤓📌