(I am on curseforge) Items like andesite and brass casings are just showing as blank colours, they show up fine in inventory and when held, but when placed for instance, the brass casing is just a solid brown colour, i know this isnt normol as i played a lot of create a while ago, and now i have come back it has done this, some other bugged textures include: all the create windows and panes, encased shafts, sides of gearboxes, and encased shafts, it seems to only affect the same flat sides of blocks with the same texture.
If i could get some guidance or advice that would be great!

do you have optifine on? it is known for breaking stuff like that

Disabling anisotropic filtering and antialiasing in Optifine's quality settings should fix the issue.

turning anti-aliasing off fixed this, thanks!