Transaction not yet indexed

21Aa4fK42PBqcEWqapAhcHfSoNf1pNhb1ZWCiBS8wofwqEAYk3a8faL7yawpKPejeGiPFC12VRfmdh8JxAPQSqwt

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