Transaction not yet indexed

21C3mmWNuWszbwA1RdywF1tu6RkxCaG2aZnt5aqJEWSmdDfhMVRTvCcW6z78jDSVFPEafbkfs6CuD3nVSM9wPwPi

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