@florent I updated to build 16498 and followed your suggestion. Now it is showing that the connection is running and successful. I have a 2-day object lock enabled. In BackBlaze B2 Buckets once object lock is enabled you cannot disable it. You can change the days to lock to 0 but that will only affect new files. Existing files will be locked based on the Object lock settings applied when the file was saved.
It appears that this is resolved. I will try to run a few backups to my BackBlaze buckets to see if it runs.