Transaction not yet indexed

Mr4UCKv1oovfdf1spnAqfDHpQLB9hT2wiWqQksXUgaVrJctsmYwYpn2zqa65nwzHi3sshvLpKUDFMoL3pcQHTuE

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