Transaction not yet indexed

28JEApp9d6rfHeECmRb96EY2qpR45eFUSa8yq9VXpnhQcN9sGPMHy3v3kHvs7bZ1MLrQ2LVy9m2QPbNUyz913NRP

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