Description of my issue: Further to ticket number #23332 – Upload S3 failed after 4.4.0 I am trying to set up a new client with Amazon S3. Have had similar problems logging in and post processing the backup.
I tried Disabling multi part uploads using Amazon V4. Still no success. Left the multipart uploads disabled and went to version 2, the legacy version. Post processing was successful.
For your information.
Regards,
Ric