[Duplicity-talk] decryption failure in duplicity replicate

[zga9uhnq4g]

    I've been using the Debian duplicity package version 0.8.20-1 in
    Windows Subsystem for Linux on Windows 10 Pro for 8 months to backup
    "important" windows files to my Microsoft OneDrive account, but it
    is running low on space so I want to switch my Google Drive account
    that has 3X space.
    
    When I ran "duplicity replicate"  I got an error saying "gpg:
    decryption failed: Bad session key", but duplicity didn't exit.  I
    let it run over night, and finally interrupted it.
> # duplicity replicate
>         onedrive://Backup/finance.duplicity-direct
> gdrive://530054400480-6t6b9ul7l43hh8s1epq6cuehvd3ie2a2.apps.googleusercontent.com/finance.duplicity/?myDriveFolderID=1avphlf2LSwSmib6JaZIQRpXfPrAqsptu
>       Last full backup date: none
>       GnuPG passphrase for decryption:
>       Replicating
>         b'duplicity-full-signatures.20201212T204209Z.sigtar.gpg'.
>       GPGError: GPG Failed, see log below:
>       ===== Begin GnuPG log =====
>       gpg: AES256.CFB encrypted data
>       gpg: encrypted with 1 passphrase
>       gpg: decryption failed: Bad session key
>       ===== End GnuPG log =====
>       
>       ^CException ignored in: <module
>         'threading' from '/usr/lib/python3.9/threading.py'>
>       Traceback (most recent call last):
>         File "/usr/lib/python3.9/threading.py",
>         line 1428, in _shutdown
>           lock.acquire()
>       KeyboardInterrupt:
>     
    Duplicity did create the finance.duplicity
    folder in Google Drive, but it is empty.
    
    I then ran "duplicity verify" and confirmed I can successfully read
    the OneDrive backup repository.
> # duplicity verify
>         onedrive://Backup/finance.duplicity-direct
>         /mnt/d/home/pcanning/Finance
>       Local and Remote metadata are synchronized,
>         no sync needed.
>       Last full backup date: Wed Aug 11 02:01:44
>         2021
>       GnuPG passphrase for decryption:
>       Verify complete: 817 files compared, 0
>         differences found.
>       
    Can anyone help me figure out why "duplicity replicate" is failing,
    and suggest how I might fix it?
    
        thanks,
        Peter