Transaction not yet indexed

5n99ydDwgC1MEV16oWNdvywkvfeQrYnVoGdsD97b1oHWVMoZHef3p7BTLw4MLQ2pdHWPP35nXkfi5iMwNvBhrSe2

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