CloudFlare preview → subdomain out of sync

My Pages site has been having issues all day. The preview site works fine, but the subdomain is older or broken.



Notice the link to the practice midterm is missing on the subdomain page.

This page works on the preview:

but has a bunch of missing images on the subdomain:

This all works fine for me with the subdomain. Did you fix it, or is the problem ongoing but intermittent?