Transaction not yet indexed

UNnokigSF2SMSm3mN5kZP1mkGxFAf4XebmkUrRCQKoPir7cCg24AHGjTVvAmSWSG1Q4sYnJDYkwNzYTJGJppnRW

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