Transaction not yet indexed

28Ag1WDa8JrYdEMMVFMrvUZeeqAyLrv2bj2ERPq1RvrTvhsCEe97FqwuXGHeuroNLR8GiCZf4oNTsBPuGTBstSF8

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