Generate Overlaps Events for trigger box

Hi all.
Just start learn UE4 BluePrint and i have a little problem. Find on wiki lift tutorial try do it and have a problem when i come on platform i got “shot” onActorBeginOverlap and onActorEndOverlap and platform do not move anywhere, if i change BegineOverlap and EndOverlap on Key event (one for up and other key for down) all work fine.
See attachment

Can’t really help much from the information you have provided. Perhaps you missed something in that tutorial? Can you post an image of your matinee setup?

Thank for reply problem resolve, i turn on Generate Overlaps Events for mesh and now it work, by default it’s only on for CapsuleComponent.

Have you saved and compiled the blueprint?