Transaction not yet indexed

AMmGRtcADgRgdUmEPuQmbramtJx2jVUR9Vo6dyXfQoNUi8qXxFXRBSeXEjpuEysKqa3a5Amux3gdbm2VSFfERQB

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