Transaction not yet indexed

51Mop6u7CJwo4oCdiMv4TnWPhcNnkPAxsEpS65DVTi7R5dDY53DFr5vY9udYE9wVkekDigMTRJqaG4e6gFyDZ4Sn

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