[@Background Pony \#62CA](/forums/meta/topics/report-site-bugs-here?post_id=5227560#post_5227560)
I'm able to load that post's images, now. I'd say "just Cloudflare things" if it weren't that other posts were loading fine the whole time...
[edit] I'm getting the same kind of Cloudflare 524s sporadically on various images now so I suppose it really is "just Cloudflare things"