Transaction not yet indexed

21UbVqibSE77cb9PnFSt2Z6nVnms6Xv3BAqTfqqutgMpc2oC1wwr8HdjCwZDUrPikQsp4dGHkANfBWjEfbeTU9LT

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