Google Merchant say images is too small on 2000 + products

[Havouza]

I have created an account on Google merchant. After crawling is say that product images is to small and must be 100x100 or bigger. But all images is made from 800x800 images. Anyone knows which image Google look at. The small_default is 98x98. Can it be that problem

[netamismb]

As far as I know, Google Merchant uses the images from the sitemap. Just use a different image size in the sitemap.