Transaction not yet indexed

5v638nLEiBLmMXcUaQ3asL1jqViCdBpM4M9VfqSUeQjyGL18uMFUwvzBtTVfGtavbVKH4z79guJChGHuKU1vwAUk

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