The meta cover tag has content before name

[SenorSmartyPants]

On older Nooks there is an issue with covers not displaying if the attributes are in an order Nook doesn't like. Calibre's Edit Book tool checks for this error. I just downloaded the compatible epub version of https://standardebooks.org/ebooks/edgar-allan-poe/short-fiction and it has this error, probably all your books do since you use the same toolset.

content.opf snippet <meta content="cover.jpg" name="cover"/>

Nook compatible version <meta name="cover" content="cover.jpg"/>

Please update your tools to generate a compatible attribute order if possible.

Thanks!

Discussion of this issue https://nachtimwald.com/2011/08/21/nook-covers-not-showing-up/

[acabal]

Thanks for bringing this up! I've pushed a fix that will go out with the next version of the toolset.

[SenorSmartyPants]

Thank you for being responsive and the great service you provide.