I encountered missing tiles with Domum-Ornamentum installed alongside Reorgium/Connectedness.
Here are 2 screenshots, the first with Reorgium/connectedness installed, the second without.
The issue occurs on doors crafted with at least 2 different materials (it doesn't matter which ones) placed in the 3 Architects cutter slots. Using 2 slots does not trigger the issue.

With Reforgium/connectedness :

Without Reforgium/connectedness :

Reforgium/connectedness provide connected texture feature from optifine without optifine
Note : I reported the problem in the connectedness tracked issues section also
-> Asek3/Connectedness#14

This i caused by the rendering mod.
We use forges rendering engine components to support the material information choice.

As such we consider this a third-party issue and will close this ticket.