Trades only happen immediately above and below the published price on the left. What you may be seeing is a bot placing a bid or an ask with an expiration, which causes it to disappear in the middle of the list, which may appear as if it was consumed (it wasn't, it was just canceled). Also bots can trade with themselves and consume their own asks and bids, so I think what you are noticing is a lack of human traders that are willing to participate in your orders. We need more traders.