Transaction not yet indexed

ME2qamnNrgWsvvTuySsmG2BbHZr88VcDUGgz5wh7tPvPdxvMYMT8kAR7ojy5jokczQP4BMoA8u25abaS4BxdWiQ

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