It could be your postage settings or it could just be that you were checking during one of your blackout periods.

You may have to ring ebay and get them to have a look at the listing in question but you may be no wiser afterwards.

You're being quite brave posting O/S with eBay charging fees on 100% of international freight.

(Yanks only pay postage fees on their domestic rate)

I suppose you are aslo aware that unless you track you are exposed to the late shipping metric?

On your sales numbers one item late will virtually close you down.