Transaction not yet indexed

Um1U9zpUefY5RNKEEZaFaiVKBNmP6U89vGuxjW9ywJKPLqDvQHpq23dVEVe7wSZ6kJyRSCUPZM1LkQ92VGKEymk

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