Members help other members with technical questions and problems using Writing.Com!
Covers from Writing.Com 101 :
Remove a Cover: To remove a cover from an item, click the cover image to open the Cover Image edit lightbox, click Advanced, check the box to remove the existing cover image, click Done, and then scroll down to complete the edit of the item.
Pending additional programming, if you have tried an invalid cover operation and you see an ID number in the Cover Edit lightbox that you cannot clear, try adding a Stock Cover to the item instead, after which you should be able to use the regular procedure to delete the cover.
Hope that helps.