I have reinstalled both calibre (v 4.13) and Kindle for Mac (v 1.28.0). I continue to have the same problem. Also, Kindle for Mac works fine, i.e., I can open .mobi files directly, just not through calibre.
Sincerely, Dale
p.s. I installed Kindle both via the App Store and by downloading the .dmg file. There was no difference in behavior.
I have reinstalled both calibre (v 4.13) and Kindle for Mac (v 1.28.0). I continue to have the same problem. Also, Kindle for Mac works fine, i.e., I can open .mobi files directly, just not through calibre.
Sincerely, Dale
p.s. I installed Kindle both via the App Store and by downloading the .dmg file. There was no difference in behavior.