Photo won't sync on the ipad

Check file format and resolution of images that won't sync

This could be a time consuming test;

You could clear the images from iPad that have synced over, and try to sync the images which originally claimed couldn't be displayed on iPad.

If the images display correctly on iPad, perhaps the problem is the quantity of images you were originally trying to sync.

Plug iPad into pc and wait for iTunes... Click on the photo tab up top and change the folder to my pictures and mark the all folders option. I just had the same issue with only 22 of my 356 photos... This worked for me!

I hope this does not sound silly but 11,000 is quite a large amount of photos, I am assuming that you have enough space available on the iPad ?