I have a mouse with a back button that works for everything, like chests and menus, but it doesn't work with the achievement screen.
Comments 3
Minecraft says it is "Button5". I have it set to Hotbar Slot One for controls, but I don't think that's related. It's the back button that goes back in web browsers, and it automatically started working in GUIs and menus in-game. It's function is the exact same as the [Escape] key, but it doesn't work in the achievement menu. That's all I know.
What key/code is your "back button" mapped to?
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