Hi Susana,
when you open service order in IC business role, UI Component is different for IC business role.
In CRM we have different UI Components for same business objects. so when you open service order in NON IC Role ( SERVICEPRO) it will open in BT116H_SRVO and in IC Role it will open in ICCMP_BTSHEAD.
IF you want to open the service order in BT116H_SRVO in IC Role then you need to change the NAVBAR customizing for service order objects pointing to different target/logical link ID.
Regards,
Naresh