[mickjs]

Hello, I hope this post is on-topic as I am new here. Any help would be greatly appreciated. Regards, M.

NOTES: (1) KFX In/Out both updated to latest versions; (2) The subject ebook was published on Amazon just hours ago; (3) KFX Input continues to work well on all previously purchased ebooks. (4) Ebook downloaded via Kindle Mac v1.23.1 (50131).
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calibre, version 3.40.1
ERROR: Could not open e-book: Failed to read book, XXXXXXXXXXXXXXXXXX.kfx click "Show Details" for more information

Traceback (most recent call last):
File "site-packages/calibre/utils/ipc/simple_worker.py", line 289, in main
File "site-packages/calibre/ebooks/oeb/iterator/book.py", line 65, in extract_book
File "site-packages/calibre/customize/conversion.py", line 244, in __call__
File "calibre_plugins.kfx_input.__init__", line 110, in convert
calibre.ebooks.conversion.ConversionUserFeedBack: {"level": "error", "title": "KFX conversion failed", "det_msg": "", "msg": "<b>Cannot convert ?</b><br><br>story ezHVJlO7Sl_6AGRbpI2HPw7597 content type $271 has extra data: ($179: ezHVJlO7Sl_6AGRbpI2HPw7602)"}