The macOS build failure is a recent breakage in the workflow, which I'm trying to address in #4124 now.

This build worked for me on macOS Sonoma (x86)
https://github.com/dogboydog/tiled/actions/runs/12450020727

Hmm, for both versions I get this on Sequoia 15.1:

Not sure yet what the issue is, I don't get any additional output when running from a terminal. My first guess would be some missing library, but I couldn't find any. I also tried removing the Contents/PlugIns/imageformats/libqaseprite.dylib file, but Tiled still wouldn't launch.

I have this problem all the time on mac (including with the Tiled builds I tested). I have to do this:

xattr -r -d com.apple.quarantine Tiled.app

I have this problem all the time on mac (including with the Tiled builds I tested).

Ah, of course, since these builds are from the pull request, they're not signed and notarized. Boy, what a strangely misleading error message... Indeed, after doing that the builds work and the plugin loads!

I agree the error message is not helpful at all, very aggressive how it tells you to send it to the trash lol... I get the same when I try to test my games on a mac