Transaction not yet indexed

MTkZUPo9kzbTc5e9E4GdzeU93mCAm434h7G9hb4PqZSxHtr63utw5v1o1NKFSZoCyCDETTXkQjNdRmLS6iZM1oT

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