So I think everyone knows that magma cubes spawn in 2 high block spaces then gets stuck, and when the magma dies it slides(I think all mobs still has their animation during death but magma and slime has the same sliding animation during death,which is annoying btw.)AND here's the catch magma cubes apparently spawn even tho there is light right next to them(idk if it's a glitch or intentional)I noticed this when I am making a nether hub above the basalt deltas, like I have a 40 by 40 and 2 block high square in the basalt deltas LIT BY TORCH AND USED A LIGHT STRENGTH RESOURCE PACK TO MAKE SURE IF I MISSED SPOTS and guess what I did not missed any spots.So magma cubes spawn in 2 block high areas and lit areas.