[Anyssia]

hi!
I get the same error as Greyhunter since today (calibre is 7.16 and KTE is 3.6.9)

If I understood JSWolf right, you meant use Calibre's edit book feature and hit the check book button, right? I tried that, but it came out clear and transferring epubs to my Kobo (Libra2) still failed. Any idea please?
(reverted to 3.6.7 in the mean time, and sending to Kobo worked perfectly)

calibre, version 7.16.0
ERROR: Error: Error communicating with device

Failed to process Supreme Chancellor Obi-Wan Kenobi by stonefreeak: expected string or bytes-like object, got '_cython_3_0_10.cython_function_or_method'

Traceback (most recent call last):
File "calibre_plugins.kobotouch_extended.device.driver" , line 187, in _modify_epub
File "calibre_plugins.kobotouch_extended.common", line 238, in modify_epub
File "calibre_plugins.kobotouch_extended.container" , line 398, in convert
File "calibre_plugins.kobotouch_extended.container" , line 394, in __run_async_over_content
File "calibre_plugins.kobotouch_extended.container" , line 381, in __run_async
File "calibre_plugins.kobotouch_extended.container" , line 377, in __run_async
File "concurrent\futures\_base.py", line 449, in result
File "concurrent\futures\_base.py", line 401, in __get_result
File "concurrent\futures\thread.py", line 58, in run
File "calibre_plugins.kobotouch_extended.container" , line 523, in add_kobo_spans
File "calibre_plugins.kobotouch_extended.container" , line 589, in _add_kobo_spans_to_node
File "calibre_plugins.kobotouch_extended.container" , line 589, in _add_kobo_spans_to_node
File "calibre_plugins.kobotouch_extended.container" , line 539, in _add_kobo_spans_to_node
File "re\__init__.py", line 176, in search
TypeError: expected string or bytes-like object, got '_cython_3_0_10.cython_function_or_method'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "calibre\gui2\device.py", line 112, in run
File "calibre\gui2\device.py", line 646, in _upload_books
File "calibre_plugins.kobotouch_extended.device.driver" , line 342, in upload_books
File "calibre\devices\kobo\driver.py", line 2270, in upload_books
File "calibre_plugins.kobotouch_extended.device.driver" , line 211, in _modify_epub
File "calibre_plugins.kobotouch_extended.device.driver" , line 187, in _modify_epub
File "calibre_plugins.kobotouch_extended.common", line 238, in modify_epub
File "calibre_plugins.kobotouch_extended.container" , line 398, in convert
File "calibre_plugins.kobotouch_extended.container" , line 394, in __run_async_over_content
File "calibre_plugins.kobotouch_extended.container" , line 381, in __run_async
File "calibre_plugins.kobotouch_extended.container" , line 377, in __run_async
File "concurrent\futures\_base.py", line 449, in result
File "concurrent\futures\_base.py", line 401, in __get_result
File "concurrent\futures\thread.py", line 58, in run
File "calibre_plugins.kobotouch_extended.container" , line 523, in add_kobo_spans
File "calibre_plugins.kobotouch_extended.container" , line 589, in _add_kobo_spans_to_node
File "calibre_plugins.kobotouch_extended.container" , line 589, in _add_kobo_spans_to_node
File "calibre_plugins.kobotouch_extended.container" , line 539, in _add_kobo_spans_to_node
File "re\__init__.py", line 176, in search
TypeError: Failed to process Supreme Chancellor Obi-Wan Kenobi by stonefreeak: expected string or bytes-like object, got '_cython_3_0_10.cython_function_or_method'