Ahhhh... I was able to re-invite a villager I adopted earlier, gave me a total scare. We closed out of the game just in case, second time went without a problem, only kept talking about moving to my island. Took the empty plot on my island, had the Moved Out sign on their end... Was probably just a chance hiccup, but it gave me a scare. I'm positive things are fine, but geez. XD