Sorry for late repy I just came home from work.
Sigh
It looks like UE finally changed the method they bind overlap areas to events. (Or so I thought)
… 2 hours later…
I fully rebuilt the project for 4.12.5 (on Linux). Pushed a minor change to github.
Everything works fine…
I don’t know if this is windows specific or only for you.
I would strongly recomend deleteing [Binaries, DerivedDataCache, Intermediate ] folders and recompiling the whole project.
If the error persists please update your Rade version and rebuild under 4.12.5
Good Luck.