Transaction not yet indexed

421SxCATVzQNNVADJY6EgTYZoGQEqAXbLVCxzUNx8sDa6UZLCg8ZAaUweMoe7Dms46Gxe5itERUGDeg4UMpNY2NP

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