The sun texture seems to be broken.

Mods :

• SolarCraft version 3.2.1
• JEI

NO optifine installed.

Huh, i don't do anything to sun. What did you do so it became like that? I need to reproduce it to fix it. Also have you tried F3+T?

Was just wondering if there was a fix for this, Im having the same issue, I just have in SolarCraft 3.2.2 for 1.20.1 (forge version 47.1.3), I create a world and the sun just has the same black box around it, ive tried f3+t and it doesnt fix it.