Whenever this mod is installed the sun gets giant like 5x5 instead of one block sized. I even downloaded a round sun/moon resourcepack and it didn't work (worked on the moon though). only using shaders fixes it. (using ForgeOptifine 1.15.2)

also the "Automatic Recipe Unlock" makes the recipe list really cluttered with every possible recipe,and also confuses new players like myself.. maybe it shouldn't be default...

Does it still happen without any resource packs or optifine?

Somehow I the error was fixed here,but I couldn't replicate the fix so... if I ever find out I'll post here.

Does it still happen without any resource packs or optifine?

Yes... it also happend on my friend's computer... to replicated the error I installed TLaucher>choose Forge/ForgeOptifine 1.15.2>installed the mob+library and created a world...