Hi Hun, Good news and bad news. the bad news is it looks like the mac has an issue with saves. The good news is I figured out the solution and it doesnt require a new version. Its due to the nature of the save way you use. So there are two fixes. Opening up the terminal and typing "cd downloads" (or cd then whenever you have it stored) then typing "xattr -dr com.apple.quarantine " and dragging the app into the terminal and hitting enter.
The other option is just put the game in the applications folder and it will save just fine. The custom save you wrote just makes the app quarantine.