Just updated to Calibre 5.13 this morning and all of my overdrive logins are now failing. May have been happening before the Calibre update. I don't know. Log excerpt below for one such failure.
Starting job: Search for books by 1 author
Overdrive Link 2.45.0, calibre 5.13.0
Search formats: Adobe EPUB eBook, Kindle Book, Mobipocket eBook, Open EPUB eBook
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Finding library books by John Nicholls
Accessing library GLDL OD
Get
http://gldl.overdrive.com/
Redirected to
https://gldl.overdrive.com/
new OverDrive site layout detected for GLDL OD
Get
https://gldl.overdrive.com/account/sign-in?forward=%2F
Signing in to GLDL OD: Retrying gldl.overdrive.com on exception <HTTPError 504: 'Gateway Time-out'>
Signing in to GLDL OD: Retrying gldl.overdrive.com on exception <HTTPError 504: 'Gateway Time-out'>
Signing in to GLDL OD: : <HTTPError 504: 'Gateway Time-out'>
Traceback (most recent call last):
File "calibre_plugins.overdrive_link.jobs", line 979, in sign_in
File "calibre_plugins.overdrive_link.overdrive", line 411, in sign_in
File "calibre_plugins.overdrive_link.net", line 291, in open_url
File "calibre_plugins.overdrive_link.net", line 233, in open_url
File "urllib\request.py", line 531, in open
File "urllib\request.py", line 640, in http_response
File "urllib\request.py", line 563, in error
File "urllib\request.py", line 502, in _call_chain
File "urllib\request.py", line 755, in http_error_302
File "urllib\request.py", line 531, in open
File "urllib\request.py", line 640, in http_response
File "urllib\request.py", line 569, in error
File "urllib\request.py", line 502, in _call_chain
File "urllib\request.py", line 649, in http_error_default
urllib.error.HTTPError: HTTP Error 504: Gateway Time-out
Cannot perform search at GLDL OD due to sign in failure