8 – Image Styles and CDN Module

I’m having an odd problem with the CDN module… If I upload an image, the URL for each image style will appear broken until I open it in the browser first. Then, it will work in the CDN. I’ve tried with a couple of different CDNs (at first I was thinking the one I was using wasn’t passing the ?itok parameter along), but I still get the same results.

It seems as though the image style isn’t being created when the CDN tries to access the URL, but I’m not sure why.

Any help would be appreciated. Using Drupal 8.8.5