Solved Problem with mapping stairs

[Trimerium]

Hi guys,

It's literally been years since i last mapped but i've just started again and am currently mapping an Rpg map.

Problem is i'm a little stuck on these mountain stairs, i can walk up them from the floor below fine but i cannot walk down them at all, can anyone tell me why? It's probably something basic and i'm being dumb, but help?

Thanks

 

[Nemphis]

try item 459 when you walk on 459 it takes you down

 

[Trimerium]

You are a life saver, thank you sir