As said in the title, all natural lighting is constantly flashing. Modpack: Alchemy 1.3.6, Better Poultice 1.0.0, Expanded Foods 1.4.0, Mediaeval Expansion 3.6.0, More Classes 1.1.1, Necessaries 0.8.12, Or Pulverizer 1.0.0, Primitive Survival 2.6.2, Proximity Chat 1.0.6, Step Up 1.2.0, Temporal Hack 1.1.0, The Neighbors 0.4.10, Viescraft 1.0.4