[Conversion Plugin] KFX Input

[laxarus]

Updated to the 2.13.0 and I started getting this error.

Even the books I was able to convert from KFX to epub without problem started giving this error.
What is wrong here?
I am trying to find an older version of the KFX Input to test but cannot find it anywhere.

calibre, version 7.12.0
ERROR: Unhandled exception: <b>ConstraintError</b>:ConstraintError: Foreign key violation: tags is still referenced

calibre 7.12 embedded-python: True
Windows-10-10.0.22631-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.22631')
Python 3.11.5
Windows: ('10', '10.0.22631', 'SP0', 'Multiprocessor Free')
Interface language: None
EXE path: C:\Program Files\Calibre2\calibre.exe
Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (2, 13, 0) && DeDRM (10, 0, 9) && Package KFX (from KFX Input) (2, 13, 0) && Embed Comic Metadata (1, 6, 6) && EpubMerge (2, 18, 0) && Goodreads (1, 8, 2) && Goodreads Sync (1, 16, 8) && KFX metadata reader (from KFX Input) (2, 13, 0) && From KFX (2, 13, 0) && KFX Input (2, 13, 0) && Set KFX metadata (from KFX Output) (2, 8, 0) && KFX Output (2, 8, 0) && Manage Series (1, 5, 2)
Traceback (most recent call last):
File "calibre\gui2\convert\single.py", line 304, in accept
File "calibre\gui2\convert\metadata.py", line 256, in pre_commit_check
File "calibre\db\cache.py", line 85, in call_func_with_lock
File "calibre\db\cache.py", line 1634, in set_field
File "calibre\db\write.py", line 572, in set_books
File "calibre\db\write.py", line 491, in many_many
File "calibre\db\backend.py", line 1159, in executemany
File "C:\t\t\apsw-42s16m2x\src\cursor.c", line 240, in resetcursor
apsw.ConstraintError: ConstraintError: Foreign key violation: tags is still referenced

[laxarus]

uhm. Nevermind, I found out the issue which was totally unrelated to KFX. For future reference to anyone who might come across this, the readarr is sharing the library with calibre and for some reason, it is preventing the conversion. Stopped readarr docker container and tried converting.