Transaction not yet indexed

521rJ8CFMmrt66FDwD38XrF4qsLA7kspFRUu63WQw4F2zXc8cYcDPEE6NPw3AWcPyGkFZKhDcTf34VcswmC54GBQ

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