The only trick is that you have to be facing the door while opening it (I know, we should've added this to the tutorial xd)
I tried facing the door, I tried adjusting incase I was to the left or right of the door. It wouldn't open. Is the trigger area small?
Around this height?
There's a door there? It's not really clear in the visual design that there is one at that spot :(. I was trying the visible door at the top of the screen.
Ahhh makes sense now. Sadly some places the side doors are a bit hard to find
