Hi
first of all I also see such behavior.
I know you are not going to want to hear this but perhaps this is not an Auctiva issue or if it is it is a joint eBay/Auctiva issue. The volume that both eBay and Auctiva process each minute is mind blowing and as such sometimes things become out of sync timing wise. Also again in the oldie days (2004) it would take sometimes hours for a listing to appear on eBay for the public when using eBay's own Lister. Computers sometimes just decide to slow down and no amount of gnashing of teeth nor wailing will make them run faster/smoother.
In case you should eel the need to berate me for being a shill for Auctiva please rest assured I am not. But being in this business for over 41 years has made me understand computers are not instantaneous creatures even though they appear that way most times. perhaps waiting awhile and having a coffee or whatever would be better on your nerves then waiting to hit the ReList key seconds after the item has ended. Just a thought
just my farthings worth
p.s. please don't make me regret responding