When attempting to submit a clone, the following message appears on the source instance:
"There is already a clone scheduled from this instance to instance 'instancename_test'. You must wait for existing clone requests to complete before submitting any new requests."
Release or Environment
Kingston and older
Option #1. Wait for clone to complete then schedule a new clone.
Option #2. On the source instance, cancel the most recent clone scheduled, then request a new clone.
Option #3. Upgrade to London or newer. You can then submit as many clone requests as needed.