Well me and my friend was playing Minecraft PE,well we are making a house. I saw zombies and skelliton when they didn't move,I try to hit them,it doesn't take damage I go though it and I think the mobs didn't spawn or what. I told my friend you see the mobs he say no. I think this is the bug or glitch.
MCPE-4899
Bug or glitch mob spawn?
Resolved
Cannot Reproduce
0
I couldn't be sure but this I think is just a case of lag. It happens with my brother and I sometimes if we aren't near the modem, the mobs freeze and he can't see it etc.