I had to record a video of this issue, here it is, in some positions, the drawers are locked or unlocked but they don't show any icons to tell me if they are locked or not, a little annoying : https://youtu.be/hwci5B9O8D4

Smells to me like a problem with AO lighting. When the drawer is against the first wall it seems fine, but the drawers in the bank on the opposite wall have dark edges around the face.

Can't reproduce. Which resource pack are you using, and are you using Optifine?

No Optifine, resource pack is F32.me 1.11.2 modded edition and the official Faithful32 Vanilla for 1.12 in combination so I get also all the nice textures of the 1.12 features, I need to take the time to combine them myself, so I get everything from the same pack, but there's still some upgrades that are made to theses texture packs so I'm waiting for a more finished polished version before I take the time to do what I do usually, I mix quite a lot of textures from different packs for the water, sky, sun, moon and such, still not done yet for 1.12

It does look like something wrong with the AO lighting, but that's pretty much all in Forge's domain. The lock is probably being rendered, but it's completely black on the black front edge.