Transaction not yet indexed

MT6GRKcCgYSfL3K29VmRdHjBPaEBisdeRAM32N3EnBS7iHM3xUm3gWPWK9cHT3ADP4TXZ28siuHScRUwPpL9AR5

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