Transaction not yet indexed

Mt1zSW588iUBa4d7PRJ3hoU3nxcYYCBWZUq6v9GybcmdmxsJzBscGCXQKTQSQDBdmcL9pu7spTid1j2UYAsMcP5

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