Recently I installed Project Red 5.4.6.57 with Optifine on Minecraft Forge 10.13.2.1236 on Minecraft 1.7.10, but I get a wierd graphical bug when I place multipart blocks. I attached images with and without Optifine to the post. I should also mention that I tried Optifine 1.7.10 HD A4, 1.7.10 HD U A4 and 1.7.10 HD U A3. I also used Karyonix Shaders Mod v2.3.28 on both of the images, however no shader packs were loaded at the time.
Any help would be appreciated!