Transaction not yet indexed

mtMePaPiLfz64hYHYhUNLJMMSmHfwAcTJAzs3e3YWLBY7yRu4x6ZJLHpnYw4ioZcfDtcwmRJuSFCkaNxeQ4k4oo

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