Transaction not yet indexed

21a8R7MH8aALU4QFR1k7tFWPJc3faabFEE2xUcDX3H6QR6kK4JxnTrmUNSDAsGGd78rHiYDx1yBgVfFyCNc8iohC

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