I have a theory as to what the problem is. I assume you're also using the itch.io app and not downloading it off the webpage which I do too. If this is true then my theory is that Mr/Mrs Floppystack did something different in their upload than usual. On the app and on the web itch.io shows which files are marked for what specific device types as seen visually with the windows, linux, apple, and andriod symbols that way the files launch correctly and that you don't download the wrong type. We see that with v0.5 the symbols are next to the files however with v0.6 they have no symbols which leads to my theory that maybe a box wasn't checked or something when the files were uploaded. Anyways again just a theory (a game theory) as I am not a dev but just a long time player and am having the same problem as well with the app.