villagers sinking into the ground

well i'm just using the new tnt tornado from sethbling ,then i place a villager near it (not in the blast range just in a hole it created) so i place him and he sinks into the groung all the way not just to his hips like that other bug

also i had 4 of the tornados going so it might be caused by lag

ps the last pic is the tnt tornado

if u look in the chat part it shows that it happens instantly and its not fake because it shows them all being taken in the same sec (u can tell by it spamming the notification

also when i placed the villager it either updates the block it was on but that block wasn't their in the picture so it deletes it or the spawn villager egg has a bug in it