The flood-fill had allocated a good amount of memory ~1MB each time we visit a square. This is reduced to the grid size squared, only allocated if the square we are on now is valid.
The OBOB error occured when server was updating one time too few when a player is initialized.
The player bug occurs when a new player joins the game. Normally each new player gets about 60ish frames of lag to start up. However, the new player client incorrectly assumes all other players are new as well.