Transaction not yet indexed

4UN21cupaeMQ6S32khz5tc9TQkjNaCpCLEJGeMXKrdLcVw2YZFHbWb1TMnwrSVYiSmnM543RusV9P6n2fK5EXVxV

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