Hey -- I've sent a tech support request in for this, but I thought I'd also draw on the collective wisdom of this site to see if there's an answer.
I submitted my first card images yesterday & today and used the site cropping tool post-upload. Even though I'm selecting the entire card when I crop, I wind up with just the bottom 2/3 of the image as the result. Have tried both Chrome & Firefox with the same result.
The images are a couple of cards from the 1935 Reemtsma silent film series and a 97 Ultra Gold Medallion Jose Cruz Jr if you want to check the queue as a point of reference.
Searching the forums, I found a few instances of issues that sound similar to this but didn't find a fix. If you've got an angle on this, send it my way -- and thanks!