Transaction not yet indexed

991ahbLSH3qS87vdufYryfKk1WdWrPqhXEMJoJqMT7PMN6HFZjooLUDYNFSQTnpUirQprH5rsuSQAsoQYvm8yc6

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