@PizzaTijd Thank you for your response. Do I have to keep the ironing option on in the print setting? Or should I turn it off and only enable in "Per Model Settings"?
Edit: because when I slice it without the ironing enabled in print setting, its not showing any ironing lines in the preview. And when I slice with ironing on, it showing ironing lines like the usual ones not specifically on the B part. So I am bit confused, if I keep it on or not (in the general "Print Settings", in both scenarios I have of course kept ironing enabled in "Per Model Settings".