Transaction not yet indexed

Uf21znxTKK4N8USa1FrgESdf5Np57rKxAWe3xbe1fP3FEZcsAku6U5PcCkHzMyZtWmR5ncQES2TBjfWf2Q2Ur27

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