My PC crashed for some reason while converting books to KFX format and now I cannot convert to KFX anymore. This same error also happens on every book I've tested, including the ones that were previously converted to KFX which didn't have any error.
I couldn't find anything regarding this error on the internet. I have tried restarting my PC and reinstalling both the plugin and Kindle Previewer, but to no avail. Here is the error code, which is the same for all books though I've removed the part where the converter flattens, removes items, etc.
Code:
Launching Kindle Previewer 3 (unknown_32604616) - CLI
****************** Conversion Failure Reason *****************
Failure. Process return code -3ffffffb
**************************************************************
Python function terminated unexpectedly
{"msg": "<b>Cannot convert BOOKNAME</b><br><br><b>Conversion error:</b> Failure. Process return code -3ffffffb", "title": "KFX conversion failed", "det_msg": "", "level": "error"} (Error Code: 1)
Traceback (most recent call last):
File "site.py", line 114, in main
File "site.py", line 88, in run_entry_point
File "site-packages\calibre\utils\ipc\worker.py", line 209, in main
File "site-packages\calibre\gui2\convert\gui_conversion.py", line 43, in gui_convert_override
File "site-packages\calibre\gui2\convert\gui_conversion.py", line 28, in gui_convert
File "site-packages\calibre\ebooks\conversion\plumber.py", line 1275, in run
File "calibre_plugins.kfx_output.__init__", line 215, in convert
File "calibre_plugins.kfx_output.__init__", line 297, in convert_using_previewer
File "calibre_plugins.kfx_output.__init__", line 342, in report_failure
calibre.ebooks.conversion.ConversionUserFeedBack: {"msg": "<b>Cannot convert BOOKNAME</b><br><br><b>Conversion error:</b> Failure. Process return code -3ffffffb", "title": "KFX conversion failed", "det_msg": "", "level": "error"}