Transaction not yet indexed

21CbcPbAPvsdGhat8jUrdkwsWRRvLz945NKdYBd2pVnZ3ZrkSpN867bdVeZqtC3YNNFKX8f4W64QMu8KHfmDRGG6

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