Is it possible to remove “core image” from the Back Cover image from the Box Set maintenance screen?
I was expecting the same functionality as the “Covers” tab for a regular movie entry
That is indeed not possible, you can add your own, and you can remove your own, but it will show the Core box set front/back cover always.
I’ve put it on the request list to allow users to be able to remove that cover too.
This has been implemented now, you can now remove the Core Back Cover images too.