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I am having an issue changing the icon in the top, left corner of a Windows 10 window. I make my change in the 'Global Game Settings', but the default GM icon shows when I run the project. The 'display name' change I make does work. Any suggestions on what I am doing wrong?
You might find that saving your project, restarting GameMaker and recompiling again might fix this. I've noticed in the past that when setting a custom icon it will not always be applied within the executable without resetting GMS.