Transaction not yet indexed

491FUqfd49uTUtQsXpKSSFc6v78Xo7dM3VxqCqoJMdWnEcMVau8b1yhQiGfvN4EDLPqVLX3tjZKZZeb35pnpP1fp

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