Transaction not yet indexed

mumm5BFckg6tqM39JAHvfEHXrbwD3RLSUc6M4cbkRuHs31Z3KrtfiCPxQHPgBcyAuj9ZoGSdz2pytq56xM9CQu8

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