Enigmatica 6 0.4.8

Describe the bug
Sometimes the Construction Blocks from Building Gadgets lose their texture, or change to a different nearby texture. As far as I can tell it usually happens when you leave the chunk and come back, but that could just be a coincidence. I've never directly observed one changing textures in front of me.

Screenshots

All the blocks are supposed to have the same texture of blue cave crystal, but some of them have randomly changed to a bedrock texture and one has disappeared entirely.

One way to temporarily fix it is to cause a lighting update nearby. When I placed a torch down, the nearby blocks went back to the correct texture. After a bit more time, though, the bedrock textures start reappearing again, so it's not permanent.

Possibly related bug: Certain blocks with non-full hitboxes still cause the construction block below to cull its top face, leading to black artifacts around the sides.

Important information: These blocks are located at y=0, where bedrock normally would be, which could be having an influence in this behavior.