Just updated to the current version and I'm now getting this error. Anyone else getting this?
Spoiler:
calibre, version 0.9.11
ERROR: Unhandled exception: <b>TypeError</b>:list indices must be integers, not NoneType
Traceback (most recent call last):
File "site-packages\calibre\gui2\library\models.py", line 779, in data
TypeError: list indices must be integers, not NoneType