Transaction not yet indexed

ykpwJLUfNAbMSrnBbP25phQLaQkKUhX2gPMHx33xRpyfj1XBFYfb1RzHB8BXX2ZN9wf9P1zgCfjqZaRRrAQu5P6

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