level blueprint

Hi everyone ,
I was just folowing this video https://www.youtube.com/watch?v=HJbHs_oNQsk&list=PLZlv_N0_O1gak1_FoAJVrEGiLIploeF3F&index=12 ,and the problem is that the door opens normally but i can’t walk throuh the door .

Maybe your door frame is too narrow for your characters to go trough, maybe the door frame has one single collision box, maybe the doors themselves have too large collision box. Stuff like that.