The game crashed upon loading a world, and I get this error.

The game crashed whilst rendering block entity
Error: java.lang.NullPointerException: Cannot invoke "dev.tr7zw.exordium.access.SignBufferHolder.renderBuffered(net.minecraft.class_4587, net.minecraft.class_4597, boolean, int)" because "this.renderingSign" is null

Either mod works alone, but with each other this crash happens.

This is rather unfortunate since both of these mods are important performance enhancers for me.

I have decided to only use EBE until this is fixed since it has a slightly higher FPS impact for me in my world than Exordium.

Sorry, missed that. I did look for a mention of EBE, but should have looked more