Transaction not yet indexed

21em4u3GuzKz7vKRCNN2BjeuT1KenNRAfWD8fTLGfzgKvUf3bd5FL2PSzAB2PpcQtQgPCnfwzqXbQt4umeHLngEd

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