@6:02 The course refers to hovering over the delegate to see the signature requirements.
My VS Code does not have this hover over function (or something is not loading correctly). So far I have made do but it seems like a hugely advantageous feature. How do I set it up?
The instructor uses Visual Studio which offers better facilities for this sort of thing over VS Code. While code is fine as an editor, for C++ it does lack somewhat. I personally use Rider which is a paid for tool and superior to both.
The only thing I am aware of is the option to regenerate project files which is in one of the menus inside the Unreal Editor.
Give that a try. You may also need additional plugins for C++ but again I can’t tell you what they are as I’ve never gotten code working to my liking with C++.