Transaction not yet indexed

PLmngZFEVocccvtD4hp53K8hRo8nj9MebYqB1uh2EJVpRwiN35dmJCiGt3aTa2YksSU4xv8fmsgF8HpsDbvFZpi

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