Currently, deploying a Data 360 (Formerly Data Cloud) Data Kit from a Cloned Sandbox is not supported. To deploy a Data 360 Data Kit between two Sandbox orgs, both orgs must have been created from production orgs (not cloned from another Sandbox).
Note that in general, Data Cloud is not supported in Cloned Sandbox orgs. More information about this can be found in the Data 360 Sandbox FAQ.
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