Transaction not yet indexed

1n55nusTMdZui9usTcvmTyUSFUvEx5MSgFaZriufyYyKgFV6uAtmumwLAH2LuhYPC9Pxga9jNXtddU6yDsE6bZc

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