Can't Bulk Edit in Field Service for certain users

Hi, Anyone knows what should I add in my security role, I have a Work Order Module for my CRM instance I already add Bulk Edit in Busines Management For my User but I don't know why the users still can't bulk edit, the problem is when the user tries to edit the record manually it will get no errors. What do I miss here? Is this bug from my CRM instance because 2 months ago we had a serious bug and need to raise a ticket to Microsoft.