Ah, now I can't read annotations. The error appears when I click on Kobo Utilities too.
I'm sure it WAS working, but it isn't now.
Removing the Kobo Utilities plug in means the Kobo Libra connects and shows installed books without error.
But then there are no lovely utilities. I'll try reinstalling the plug in and test with H2O original and the Touch N905c later, maybe its a Libra issue.
Code:
calibre 4.2 embedded-python: True is64bit: True
Linux-4.15.0-66-generic-x86_64-with-debian-stretch-sid Linux ('64bit', 'ELF')
('Linux', '4.15.0-66-generic', '#75~16.04.1-Ubuntu SMP Tue Oct 1 14:01:08 UTC 2019')
Python 2.7.16
Linux: ('debian', 'stretch/sid', '')
Interface language: None
Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (1, 22, 0) && DeDRM (6, 6, 1) && K4PC, K4Mac, Kindle Mobi and Topaz DeDRM (0, 3, 1) && Package KFX (from KFX Input) (1, 22, 0) && Extract ISBN (1, 4, 4) && Obok DeDRM (6, 5, 4) && Wiki Reader (2, 1, 0) && KoboTouchExtended (3, 1, 5) && Quick Preferences (1, 4, 1) && EpubSplit (2, 7, 0) && Smashwords Metadata (1, 0, 0) && Open With (1, 5, 10) && Quality Check (1, 9, 11) && Annotations (1, 10, 0) && Library Splitter (1, 0, 1) && Skoob Books (1, 3, 1) && Author Book Count (2, 1, 7) && EpubMerge (2, 5, 0) && Kindle Collections (1, 7, 24) && Library Codes (1, 0, 41) && Barnes & Noble (1, 2, 15) && Manage Series (1, 2, 8) && X-Ray Creator (3, 2, 1) && KFX metadata reader (from KFX Input) (1, 22, 0) && KFX Input (1, 22, 0) && KePub Metadata Writer (3, 0, 3) && Manage Sony x50 Reader Book List (1, 2, 11) && Copy Cover To Device (2, 0, 0) && Modify ePub (1, 4, 0) && FictionDB (1, 2, 0) && Kindle hi-res covers (0, 4, 0) && Hyphenate This! (0, 0, 8) && Resize Cover (1, 0, 2) && Amazon.com Multiple Countries (1, 0, 0) && Find Duplicates (1, 6, 3) && Kindle covers (G) (0, 3, 0) && EpubCheck (0, 2, 1) && Kobo Utilities (2, 9, 0) && Goodreads (1, 4, 0) && Generate Cover (1, 5, 21) && Kobo Books (1, 7, 0) && Reading List (1, 6, 6) && Media File Importer (1, 0, 21) && KePub Output (3, 1, 3) && KindleUnpack - The Plugin (0, 81, 5) && KePub Input (3, 0, 0) && KePub Metadata Reader (3, 0, 2)
Traceback (most recent call last):
File "calibre_plugins.koboutilities.action", line 226, in about_to_show_menu
File "calibre_plugins.koboutilities.action", line 335, in rebuild_menus
File "calibre_plugins.koboutilities.action", line 2102, in get_device
File "calibre_plugins.koboutilities.config", line 385, in get_prefs
KeyError: u'backupOptionsStore'