Transaction not yet indexed

MKKHCMvF2GESEwdbPHyu7GzdRh2V9C5qzRz1g4vWuUHTPFqCA6b7RUTjSEkarkdNm6PRThsD9aWjeeb3fRZ4JjZ

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