Transaction not yet indexed

21ktNmC3vnALTG2m7Z7saNT7WaxmVG1wU6tk71v7nG4dZzBEmkBUTcivCy7ELLKcrwbYcBi6uJg5fvZF7DvfpPh4

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