I just uploaded a new version called "Demo 1.0.6 Windows Compatibility Mode.zip" Can you see if that one works for you? If it doesn't, could you go to "C:\users\YOUR_USERNAME_HERE\AppData\Roaming\Godot\app_userdata\Idle Gumball Machine\logs" and email me the log files at antiquegearstudio@gmail.com so I can see what's up? (replace "YOUR_USERNAME_HERE" with your username)
