Intermittent "Account not found"

Running Cloudberry Backup Desktop Edition 7.4.2.2 and sometimes a backup plan fails with “The backup storage provider returned the following error: Account not found” as per screenshot:

https://cdn.geekzone.co.nz/imagessubs/c57970af4562208026ab6b1ef8711c90.jpg

Backblaze B2 S3 compatible. Any ideas?