Reported by Baruc in CurseForge:

I noticed that if you place the door at wall extremities, it gives a texture glitch.

I managed to reproduce this issue in 1.19.4. It seems to cull some vertices it shouldn't, but it's not consistent: changing camera angles and moving around changes it.

After playing around a bit, I can only reproduce this with Rubidium enabled. Without Rubidium, it works as expected.

Looks like "Block Face Culling" is the problematic option:

It seems like it has come up for Create as well.
Looks like I got my face culling wrong, or maybe Rubidium's face culling doesn't play nicely with Forge element models (forge:elements).

I verified that the configured culling is correct, but it doesn't cull as expected with Rubidium.

Looks like this is (now?) also broken in plain Neoforge.
Related bug report: neoforged/NeoForge#1623

I'll likely just remove culling entirely until I'm certain it'll work.