Interaction BIGGEST PROBLEMS!!

I don’t know why i follow the youtube but still failed(but video is worked).

now i’m using 4.19 version. and i’m a noob in unreal engine… i really really hope i can learn better but i don’t know what’s the different 4.19 version interact systems… :mad::mad::mad:

Why it can be different? what i have setup since started?

i just want a simple make a a sliding or rotating door in to the interior. it’s make me 2 weeks long… :confused::confused::confused: