Transaction not yet indexed

Gb21TiuHC4zZRMNPECy5RPF16jZssaKATSW4fdq1xdaWEx6z8mFJ1JCVvbP7Y2sDr3VQ6GRRprmkGHNC9q5gkhK

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