Hello hippohile1 -
if the gallery was showing correctly when a listing closed, you should be able to use Create Similar either via Auctiva or eBay and the gallery should then show correctly on the newly created listing. Please be aware, however, that when you relist on eBay there are certain elements of your listings (such as Auto Relist profiles or which images are actually in current use) that our system is no longer able to track.
It is not a dispute, but you may have found a bug. If you have an instance of the scrolling gallery appearing on a listing where that is the only active listing you have on eBay (and it has been at least 4 hours since any other listings have been active in eBay so the gallery can wholly refresh) please let us know while it is occurring so we can have a look. The scrolling gallery should only appear on your listings when you have more than one listing currently active.