Kindle for Pc v1.25 lastest version have new KFX format cause problems, we need to uninstall latest version and we need to downgrade kindle for pc to old v1.24, kindle for Mac to v1.17, re-download ebook file in v1.24 old version,

Download Kindle for PC 1.24 Download Kindle for Mac 1.17

  1. Open Option window, click Deregister button to deregister, remove all license content, close it.

  2. delete folder “document\my kindle content” ,
  3. Uninstall Kindle for Pc, download old version kindle for pc 1.24.
  4. Uncheck automatically update in options in Kindle for pc.
  5. Re-download ebook by right-click ebook in kindle for pc, then run converter and try again.

For Mac

latest version kindle for Mac has this problem, you should install old version, re-download ebook file in v1.17 old version.
Download Kindle for PC 1.24 Download Kindle for Mac 1.17

  1. deregister in Kindle for Mac, delete all content, remove app Kindle for Mac.

  2. download old version 1.17 at KindleForMac-44173.dmg
  3. uncheck automatic update in options in Kindle for Mac.
  4. Re-download ebook by right-click ebook in in v1.17 kindle for Mac.
  5. run converter and try again.

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