Hi LuckBeALadyTonight,
Thanks for helping to bring this issue to our attention. It sounds like you are encountering a current issue with our preview page that cause cause some images not to show up when a "custom" header/gallery image is selected which is not included in the numbered boxes in the Auctiva Image Selection section.
Our technical team is currently investigating this issue and we will address it as soon as possible, but I cannot provide a specific estimate of when it will be addressed at the moment.
This particular issue only impacts the preview page so, if you were to go ahead and post them now, all of the images you added to the Auctiva Image Selection section should still be submitted to eBay successfully and appear as normal.
We apologize for any inconveniences this issue may be causing. If you need any further assistance with this, please feel free to contact our Customer Support team by mousing over the “Help” tab and selecting the “File Support Case” option.
-Mike