Transaction not yet indexed

5N21CWvPkQ12NzALsPTVDQqfUe3aAFVJfg1NiGLL53jMAZeaxGuEdzUNmWBmxQAcRGyxbZP5tvmEaNjWzLUY8QH2

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