Transaction not yet indexed

21Cb9hSamEerTh8WSSLvBHLgC9tofBjV6RB3auR85bah6LvPU1nV4fMMSc5gQ8uBAMX5AvbL9CqdBGtoeMZepGpT

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