Hi, I'm on Unreal 4.16.1 with the most recent version of the menu system. I followed the directions to import this into an existing project, but have many unknown reference errors. One for example is in the MainMenu widget BP: "Menu Button Line", "Get All Buttons", "Un Select All" are all unknown variables/functions. I could start over and try again in case I made a mistake, but maybe you could easily tell what I have missed. Where are these functions defined? Thanks for any help.
I've had these problems a few times in this project and in others and I'm not sure exactly what caused them. Sometimes going into the BP file and pressing compile fixes the issues. Sometimes I have to reimport things. Other times it's because of different engine versions. You said you used 4.16, so I don't think that would be the issue. You can try compiling the BPs. Sometimes it's easier to re-create the variables or drop the nodes again. It kind of depends on how many were not found. If I find an answer, I will post it here.