Transaction not yet indexed

AMb2h8rBQBPCgv4bvJYi2QSaLsC7d4HjJrh2XEN18iwY8EdEeCtGiqGVks2YNLRmCNCoFfwp6PhcwQAzfTiG2Hb

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