Transaction not yet indexed

21n4RuxFR4X2MaCFcnJMkykSG9xVGMLGqfp66p3A5smPVu1b3SY9XCkNPn2QpWQQrh6Be2vWdXvZc1FeAUeGpX66

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