Is your new device the iPad Air 2 or the iPad Mini 3?
If so, this might help:
https://www.mobileread.com/forums/sho...81#post2989581
NOTE: this is an issue with the calibre plugin, so you can check that thread first, it will probably help.
Also, please don't double-post in another forum. [
Duplicated deleted - mods.]
cf. third item here:
Forum Guidelines