Incident assignment group overlapping

[Mouktik_B]

I need to create a record producer under a specific category in service catalog which should go to specific assignment groups based on priority . If p1 and p1 - SD otherwise Support team . 
Now there is already a pre existing similar record producer under a  different self service category where all the incidents(any priority) are assigned to SD . There is an assignment rule as well for all the incs to get assigned to SD .

The issue happens when there is any change made in the new one , it overlaps . Created a assignment rule as well and scripts but nothing is working . 
The incidents of P3 are going to support team even for the pre existing one . How will i differentiate ?

What Should I do?

[Ankur Bawiskar]

@Mouktik_B 

disable the assignment rule and set the group from individual record producer script itself.

Since you cannot determine the assignment rule triggered because of which record producer, I believe the only way is to use record producer script