[Vacman]

Well what I found out is unless I make my thumbnails the exact or smaller size as defined in "Thumbnail width in the products list:" in General Setting::Appearance, this will happen as well as being over 150 bytes wide... I guess?

Also, at this point I still cannot import my 1500+ products db, so for now I have manually created just one product. So it is not a matter of caching the images. What worries me is that under 4.0.16 I didn't have to do anything. I just upload my images and it automatically resized them for the thumbnail. I hope that this does not mean that I am going to have to go and manually resize all of my thumbnail images....