HTTP 520 Errors

That is odd, Community Tip - Fixing Error 502 / 504: Bad Gateway is the info on the 502 you mentioned.

I would suggest you still contact support and ask, providing any info such as connection IDs as you can as they should be able to look into it and provide more info/help with what could have caused this. Not seen anything indicating an issue with Cloudflare at the moment or earlier…

Sorry I can’t be of more help!