Got it. You need chmod u+x on Homing1.1_Mac_KBM.app/Contents/MacOS/Homing
Then it runs. The app bundle itself is already executable, but I that file needs to be as well
Thank you! I think this is unfortunately something I can't fix in the build, not sure why building to Mac from a PC in Unity is so touchy but alas.
Mojave here, and no such error—just the usual right-click-to-open and confirm. Guessing it was an isolated incident. So, good news: it’s not the build! Bad news: no idea what it was.