Transaction not yet indexed

21UNbKrnTshfZDiwSNMCe2R5BmidHCua1aWbF3rC1ETf47HBffb2KfRdN5MPtyA5DWbZhQVVzvbFrRG3t1GfHmmU

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