Transaction not yet indexed

RKkPwCSSf6LJwiPqtbu5S6BP7sS3Nsq6ZP9iAfNfhXoDhyCeREgJaUsezpCmS8LZzLsTmgL62SQB9ZH4n5Kyid4

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