I'm not hugely familiar with macOS, but it's possible that app translocation is causing the issue here rather than it being an issue with the game itself. Google tells me that app translocation is a thing macOS does when you try to run a program from the same location to which it was originally downloaded, so you could try moving the game to another folder in Finder. I have no idea if that will fix the issue, but it'd be the first thing to try I guess.
The problem is that dot files (._000atl.rpy) which are metadata files that appear (normally if you access the files from a non mac network share iirc) were in the directory. To fix this I had to:
dot_clean [App Bundle File]
xattr -cr [App Bundle File]
If you do these steps before you zip the application it should avoid this problem. Simply moving the file (and I know why you suggested it) isn't enough