Transaction not yet indexed

Uc3kkgxByaCaWvhAnFs8WHYNKgCyxeBAyXF7yJoUQcAYUPj5f6pfFrfiVNb4qbYtB5mFTS2tcssUMum21zRMiVi

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