So hide and seek has been really buggy lately. For a while they fixed this glitch, but now it's back: you get glitched into blocks like fences, soulsand, cobble walls, etc. Second glitch: Knockback II rarely works. I always punch the seeker into the lava pool at the beginning of the nether map. I played that map 7 times today. It only worked once. Either 6 people were using knockback prevention hacks, or there's something wrong with the server.