Oh great, it looks like my Mastodon instance lost the ability to post media. Yay!
Will have to troubleshoot later. Too much to do right now.
@aral The phone one seems to be showing okay in my instance.
It's possible you're low on disk space?
@aral sounds like a typical bug from the CSP headers.
@aral starting with 2.4.0 I had issues too. Workaround seems to be to shrink the size / dimensions of pictures, but the actual solution requires modifying CSP headers
This is my personal Mastodon.