Transaction not yet indexed

28UmHa2ooLkWTJXMFZMY8jFjMhqT81XsrUsADvWJrzttoXsHrLxizejwSjKyTqU3FMCi6oSReUbSvDQMGFZ8tWM5

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