[Harzmounty]

Hello Everybody,

I am using Calibre together with my Kobo Aura One since more than two years.

All of a sudden I am getting an error when transfering books to the reader. Here is the error message:
---------------------------
calibre, version 3.37.0
FEHLER: Fehler: Fehler beim Kommunizieren mit dem Gerät

float argument required, not NoneType

Traceback (most recent call last):
File "site-packages\calibre\gui2\device.py", line 87, in run
File "site-packages\calibre\gui2\device.py", line 540, in _sync_booklists
File "calibre_plugins.kobotouch_extended.device.driver" , line 476, in sync_booklists
File "site-packages\calibre\devices\kobo\driver.py", line 968, in sync_booklists
File "site-packages\calibre\devices\kobo\driver.py", line 2513, in update_device_database_collections
File "site-packages\calibre\devices\kobo\driver.py", line 3046, in set_core_metadata
TypeError: float argument required, not NoneType
------------------------

Altough the books are transfered and readable, they don't show up as "On the reader" in Calibre.

I am using the following extensions on Calibre:
Kobo Book Version 1.5.0
Kobo Touch Extended Version 3.0.2

PC is running with Windows 10 / 1809

Any ideas? Suggestions? Help?

Thank you