Transaction not yet indexed

421ykUpPy3Z9aiQpLEP1yf3hxcTajT6PSfdXaNg6A1rA77C1GDteZkXLHYgiJWJfTTim6hT7XbhubxvBRqvEP6qM

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