Unreal UI menus/buttons stopped working

Development Programming & Scripting UI
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1

Menus/Buttons no longer work in the Unreal UI. The basic menu (File, Edit, Window, Help) nor the button menu (Save, Source Control, Content, Marketplace, Settings, etc.)

I can click, but nothing happens. The engine is unusable now. I have no idea what is going on.

I’m on Windows 10, up-to-date.
GTX 650 ti, up-to-date.

Can anyone help?

2

This is a known issue with older versions of UE4 and newer versions of Windows 10. I think 4.14 was the first version with the fix, but see this thread for more info, and a potential workaround if you’re building from source.