Transaction not yet indexed

28TvvENocKDPizapKPLGyFPy2RVmGUp5spqfiB1EVa8D921NqCDEBaePr3jKf2S6frnk8RKu1SPCxKCbA2NgDDU7

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