I suggest that you "schedule" your auctions and make sure to keep the "retry" time on at least 30 minutes tonight.
If you use post now it will only attempt to list your item for up to 5 minutes from the moment you hit the post button. If 5 minutes pass and we're behind posting listings, your item won't post.
If you schedule and use the 30+ retry time, it should post within 30 minutes without a problem.
Sorry for the delay in getting some of your listings posted tonight.
-Kevin
Original Post