Quite some time ago I was reporting discrepancies in the image management section. It would show 1 or 2 saved listings and then a 0 to indicate none active. So then I would relist the item and low and behold I would have a duplicate.
So yes, sometimes the image management information is wrong.
I never got a good answer and I was told that it was because I listed it directly on ebay. That of course is false because I do all my listings through auctiva.
In the rare instance that I have changed an image on ebay, within a listing that originated on auctiva, i know that i will have to change that image again (on auctiva) once it closes and needs to relist because the changes made on ebay are not sticky.