Glad I could help !
Some last screenshots in case someone else runs into the same problem
When I tried to download @3thancr0wn 's file from Google Drive, this is what I saw
The hidden files I suspected were there all along. They are (or were, because on my newer MacOS, it doesn’t happen) created when you zip a file on Mac
And there’s the script to remove them
after running that on the zip
(I don’t know why they didn’t show up when you checked on your computer, though)
TL;DR : if you’re zipping files on Mac, quite often, hidden files are created which can mess with programs. Try getting rid of those, you should be fine afterwards.