In a 99c start auction, lets say the seller has put a reserve price of $35  (unknown to the bidders of course). Let's say bidder 1 bids 99c and bidder 2 bids $40, the auto bidding thing will set the current bid at $1.09. Now there are no more bids. At the end of the auction, the reserve price has actually been reached (by bidder 2) but the auto bid facility still says the current bid is $1.09.

In an auction with a reserve,bidder 2's $40 bid would jump straight to $35 as it meets the reserve.