[andhistablet]

Thank you Kovid, log below:

Spoiler:

calibre Debug log
calibre 5.44 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.19041 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.19041')
Python 3.8.5
Windows: ('10', '10.0.19041', '', 'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (1, 49, 0) && DeDRM (7, 2, 1) && Package KFX (from KFX Input) (1, 49, 0) && Barnes & Noble (1, 2, 16) && Clean Metadata (0, 0, 6) && Find Duplicates (1, 9, 5) && Generate Cover (2, 1, 0) && Goodreads Sync (1, 15, 1) && KFX metadata reader (from KFX Input) (1, 49, 0) && KFX Input (1, 49, 0) && Set KFX metadata (from KFX Output) (1, 63, 0) && KFX Output (1, 63, 0) && Kindle Collections (1, 7, 29) && Kindle hi-res covers (0, 5, 0) && Language Cleaner (2020, 9, 7) && Obok DeDRM (7, 2, 1) && Prettify Cover (1, 5, 0) && Quality Check (1, 12, 0) && Resize Cover (1, 1, 0)
calibre 5.44 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.19041 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.19041')
Python 3.8.5
Windows: ('10', '10.0.19041', '', 'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (1, 49, 0) && DeDRM (7, 2, 1) && Package KFX (from KFX Input) (1, 49, 0) && Barnes & Noble (1, 2, 16) && Clean Metadata (0, 0, 6) && Find Duplicates (1, 9, 5) && Generate Cover (2, 1, 0) && Goodreads Sync (1, 15, 1) && KFX metadata reader (from KFX Input) (1, 49, 0) && KFX Input (1, 49, 0) && Set KFX metadata (from KFX Output) (1, 63, 0) && KFX Output (1, 63, 0) && Kindle Collections (1, 7, 29) && Kindle hi-res covers (0, 5, 0) && Language Cleaner (2020, 9, 7) && Obok DeDRM (7, 2, 1) && Prettify Cover (1, 5, 0) && Quality Check (1, 12, 0) && Resize Cover (1, 1, 0)
Turning on automatic hidpi scaling
devicePixelRatio: 2.0
logicalDpi: 96.0 x 96.0
physicalDpi: 81.82550335570468 x 81.8865671641791
Using calibre Qt style: True
[0.00] Starting up...
[0.00] Showing splash screen...
[0.48] splash screen shown
[0.48] Initializing db...
[1.48] db initialized
[1.48] Constructing main UI...
DEBUG: 0.0 Goodreads Sync::dialogs.py - loading translations
DEBUG: 0.0 GoodreadsSync::action.py - loading translations
DEBUG: 0.0 obok::utilities.py - loading translations
DEBUG: 0.0 obok::dialogs.py - loading translations
DEBUG: 0.0 obok::config.py - loading translations
DEBUG: 0.0 obok::action_err.py - loading translations
{'width': 450, 'height': 680, 'default': True}
Resize Covers::rebuild_menus - size_data={'width': 450, 'height': 680, 'default': True}
DEBUG: 1.7 HttpHelper::__init__: proxy=None
[3.52] main UI initialized...
[3.52] Hiding splash screen
Starting QuickView
Traceback (most recent call last):
File "calibre\devices\kindle\driver.py", line 465, in post_open_callback
File "calibre\devices\kindle\driver.py", line 567, in sync_cover_thumbnails
PermissionError: [Errno 13] Permission denied: 'E:\\system\\thumbnails\\thumbnail_0eb1cf31-20aa-46d1-93c9-052469e3be17_EBOK_portrait.jpg'
Traceback (most recent call last):
File "calibre\devices\kindle\driver.py", line 487, in upload_cover
File "calibre\devices\kindle\driver.py", line 532, in upload_kindle_thumbnail
PermissionError: [Errno 13] Permission denied: 'E:\\system\\thumbnails\\thumbnail_e8d40faf-0d1d-48ac-90ee-112b4716a7cc_EBOK_portrait.jpg'
Storage number map:
{(7, 0): [(1, 'D'), (2, 'F')], (7, 1): [(4, 'C')], (7, 2): [(1, 'E')]}
Storage number for USBSTOR\DISK&VEN_KINDLE&PROD_INTERNAL_STORAGE&REV_ 0401\G000WM0602770F9J&0: StorageDeviceNumber(type=7, number=2, partition_number=0)
Drive letters for USBDevice(vendor_id=0x1949 product_id=0x4 bcd=0x401 devid=usb\vid_1949&pid_0004&rev_0401 devinst=20)
{'drive_letters': ['E'],
'pnp_id_map': {'E': '\\\\?\\usbstor#disk&ven_kindle&prod_internal_stor age&rev_0401#g000wm0602770f9j&0#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}'},
'readonly_drives': set(),
'sort_map': {'E': (2, 1)}}
Syncing cover thumbnails to workaround amazon cover bug
Restoring cover thumbnail: thumbnail_0eb1cf31-20aa-46d1-93c9-052469e3be17_EBOK_portrait.jpg
Job: 0 Get device information started
DeviceJob: 0 Get device information done, calling callback
DeviceJob: 0 Get device information callback returned
Job: 1 Set library information started
DeviceJob: 1 Set library information done, calling callback
DeviceJob: 1 Set library information callback returned
Job: 2 Get list of books on device started
DEBUG: 0.0 USBMS: Fetching list of books from device. Device= KINDLE2 oncard= None
DEBUG: 0.0 USBMS: dirs are: E:\ documents
Job: 0 Get device information finished
No details available.
Job: 1 Set library information finished
No details available.
DEBUG: 2.8 USBMS: scan from root False E:\documents
[13.45] splash screen hidden
[13.45] Started up in 13.45 seconds with 15908 books
DEBUG: 8.7 USBMS: count found in cache: 10395, count of files in metadata: 10395, need_sync: False
DEBUG: 8.7 USBMS: Finished fetching list of books from device. oncard= None
DEBUG: 8.7 USBMS: Fetching list of books from device. Device= KINDLE2 oncard= carda
DEBUG: 8.7 USBMS: Fetching list of books from device. Device= KINDLE2 oncard= cardb
DeviceJob: 2 Get list of books on device done, calling callback
DeviceJob: metadata_downloaded: Starting set_books_in_library
DeviceJob: set_books_in_library: books to process= 10395
Job: 2 Get list of books on device finished
No details available.
DeviceJob: set_books_in_library finished: time= 0.2839188575744629
DeviceJob: metadata_downloaded: updating views
DeviceJob: metadata_downloaded: syncing
DeviceJob: metadata_downloaded: refreshing ondevice
DeviceJob: metadata_downloaded: sending metadata_available signal
DeviceJob: 2 Get list of books on device callback returned
Job: 3 Send metadata to device started
DEBUG: 10.5 USBMS: starting sync_booklists
Job: 2 Get list of books on device finished
No details available.
DEBUG: 17.1 USBMS: finished sync_booklists
DeviceJob: 3 Send metadata to device done, calling callback
DeviceJob: 3 Send metadata to device callback returned
Job: 3 Send metadata to device finished
No details available.
Job: 4 Upload one book to the device: A Land More Kind Than Home started
Device using plugboard azw3 KINDLE2 None
Setting metadata in: A Land More Kind Than Home at: C:\Users\KCJ\AppData\Local\Temp\calibre_n6je1_jp\8 hlayznhcaltmpfmt.azw3
DEBUG: 27.2 USBMS: uploading 1 books
APNX META: guid: e7d7fabb
APNX META: ASIN: e8d40faf-0d1d-48ac-90ee-112b4716a7cc
APNX META: CDE: EBOK
APNX META: format: MOBI_8
APNX META: Name: A_Land_More_Kind_Than_Home
APNX Content Header: {"contentGuid":"e7d7fabb","asin":"e8d40faf-0d1d-48ac-90ee-112b4716a7cc","cdeType":"EBOK","format":"MOBI_8"," fileRevisionId":"1","acr":"A_Land_More_Kind_Than_H ome"}
DEBUG: 27.5 USBMS: finished uploading 1 books
DeviceJob: 4 Upload one book to the device: A Land More Kind Than Home done, calling callback
DEBUG: 27.5 USBMS: adding metadata for 1 books
DEBUG: 27.5 USBMS: finished adding metadata
DeviceJob: set_books_in_library: books to process= 10396
Job: 4 Upload one book to the device: A Land More Kind Than Home finished
No details available.
DeviceJob: set_books_in_library finished: time= 0.34032225608825684
DeviceJob: 4 Upload one book to the device: A Land More Kind Than Home callback returned
Job: 5 Send metadata to device started
DEBUG: 29.2 USBMS: starting sync_booklists
Job: 4 Upload one book to the device: A Land More Kind Than Home finished
No details available.
DEBUG: 35.1 USBMS: finished sync_booklists
DeviceJob: 5 Send metadata to device done, calling callback
DeviceJob: 5 Send metadata to device callback returned
Job: 5 Send metadata to device finished
No details available.