What happened? First /warp animals has totally disappeared, when you do /warp animals you fall into the void. At /warp mobs the bridge is gone to mobs and the spawners are blaze and ghast. It is also totally cut in half! Okay now, the spawners and endermen and skeleton
Okay, I've found this in a corner of /warp mobs, it was teleporting around. It is a spider with a purple name above it "hand" it has these potion swirly things coming off it. Teleporting back and forth, creepy