Transaction not yet indexed

21XMDK6ZnoCmsztf3PXfRqYZ416Zb7L3NfP4KFxExb5wvmz9NwRY6C7sJWSUCFsAbVKqN9qdLkt4JmWPA2jv2VMS

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.