This BUG with soartex pack and some model texturespack
it looks like this

on soartex forums

link:http://forums.soartex.net/threads/1-10-2-vanilla-door-texture-conflict.1721/

I still don't understand why a texture pack is blaming a mod for broken textures. From the little bit I used Malisis Doors so far, it doesn't bother the vanilla textures.
shrug I could be mistaken, let's see what Ordinastie has to say.

But soartex textures pack a lot of players use.
also
This BUG does not happen only on soartex
Many model textures pack will have the same problem

Main problem is, I still can't replicate the issue... If I can't replicate, I can't fix :/

First download the soartex pack,Next install MalisisDoors
and launch Game

Out of curiousity, which one of these three steps do you think I missed ?

hmm... ...looks it's work in new MalisisDoors(or it's Optifine things?)
But the side of the door will is vanilla textures

@Ordinastie Soartex/Issues#10
I have also met（in FTB Beyond）

Reopen if it still happens in latest version.

in my case (1.12),
the wooden doors (except oak)
are just fine,
iron is completely missing
and oak side and bottom looks like vanilla but faces are missing