Hi Shadow, Welcome to the Forums.
Thanks for the answer Taco, but the problem is that there is “too much” collision. (where the balcony is just one solid block instead of individual bars)
I tried selecting the static mesh component of the stairs and setting it to ‘No Collision’. Unfortunately, in-game the collision still exists.
Once we’re able to disable collision on FN meshes, it would be easy to re-build the desired collisions with blocking volumes and/or invisible meshes.