The clone plugin is subject to these limitations:
An instance cannot be cloned from a different MySQL server version or release. The donor and recipient must have exactly the same MySQL server version and release. For example, you cannot clone between MySQL 5.7 and MySQL 8.0, or between MySQL 8.0.19 and MySQL 8.0.20.
Only a single MySQL instance can be cloned at a time. Cloning multiple MySQL instances in a single cloning operation is not supported.
The clone plugin does not support cloning of MySQL server configurations. The recipient MySQL server instance retains its configuration, including persisted system variable settings (see Section 188.8.131.52, “Persisted System Variables”.)
The clone plugin does not support cloning of binary logs.
Connecting to the donor MySQL server instance through MySQL Router is not supported.
Local cloning operations do not support cloning of general tablespaces that were created with an absolute path. A cloned tablespace file with the same path as the source tablespace file would cause a conflict.