So, I've been using BOTI for quite a long while, but I recently turned it off so that I could use shaders. I then noticed that some of the exteriors are missing parts when BOTI is disabled. I checked if it was my shaders, and it's not.
Heres some screens shots (without BOTI or shaders)
4th Doctor's (missing back and left panel)
Rani (missing all panels)
Chronotis (not actually sure if its supposed to look like this or not, since its only a door way)
SB-129 (no interior textures at all, just a solid wall)
Tree (missing all panels)
It's a bit hard to show, but the nether portal is missing a texture too (assuming the portal is supposed to show when the TARDIS is opened