I am currently playing Infinity: Evolved 1.7.10 version 2.2.2. I reached to the point where I need nether stars and I could not spawn the Wither Boss which is strange. Did some research on my own and did not find any similar (bug). Usually four soul sand and three wither skeleton skull with soul sand in T shape with the three skulls on top spawns the Wither Boss but is just not doing it for me. Everything looks correct but it would just not spawn the Wither Boss, could someone be of assistance as to what is the case?