Been getting this weird issue lately where some vehicles make the screen go completely white when placed down (sometimes the colour changes depending on the time of day in-game)

The game continues to run fine though and if i manage to break the vehicle the screen goes back to normal

I'm playing with Optifine and with fast render off, if i enable it the world seems to only render half of the faces.

I'm playing on version 1.12.2 with these mods:

I can also provide a world download if required

Linked to mirroring states and the switch from back to front-face culling on models.

Fixed in V21.0.0.