Transaction not yet indexed

Mpn1MC3D2Li2yF5YeuTKkCcSPKyf2uAEE1QTNJSooubFb4nz3q4mL8qKestQKmd6uaua7bwRt1mXdUkhpgeEqSZ

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