Transaction not yet indexed

21bpnSfSUzMLPtzMN2hecRDTbWDvQbXLuWfWVamG1azFr3DoFf3R6SfCqsEXQXQ3cEMw7eXwb2ycvBkdyXHPZTa2

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