Site doesn't load properly | Cloudflare Purge Cache | Intermittent

This happens 1-4 times a week through out the 10 sites on cloudflare. Easily resolved by purging cloudflares cache but I’d like to get to the problem and fix it. Anyone have a clue of what’s happening?

Can you share the name of one of the sites? This looks like an issue with the CSS not loading, can you disable Auto Minify for CSS on one of the sites and see if the issue persists?