Mount Summon Bug

I understand that it's a common bug for a mount to not summon in certain capital cities.

I followed the direction of other forum posts to move/delete patch-w.mpq and patch-enUS-x.mpq. This just ended up bugging all the models so I restored them.

As of now I can't summon a mount in Ironforge and Stormwind, and I realize that this bug is tied to the WOD models.

Has anyone got any tips or ideas to fix this problem? It's not game-breaking but it's very annoying

Other than deleting those files you could just use the original client with it's original models. Those are your options.