WP Smush Pro Stuck on Fetching

I did a first batch of bulk images and they all optimized and came back just fine. I did a second batch and after fetching about 10 images, it won't go any farther. I've tried several times now. I'm getting "Error downloading smushed file for attachment id: 6795". Including a screenshot. Thanks for any help! I've got a lot more to do and would love to get this out of the way.