Transaction not yet indexed

Kk88ETL7gdmcdkG39fRWqvV7xgfNpG4nRAKJDd3SEcjSj1ShdgE4uWUmPrHsatzkhwyU3jyD5cEDj9XEfetcVi5

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