Hello,
You are using the Select Node, the Call will go the the X path only after the 2nd attempt failure.
With Target Requery in a Label, Route Select, or Select node, if the router fails to route to a target node, a second attempt is made. If the failure occurs a second time, then the router continues from the failure path in the node.
First i would say check if the 2nd attempt is made to the Agent in the First LAA.
Even for some reason the 2nd attempt was not made and the Script took the X path of Select node, you still have the SG_A agent on top. It should have been delivered the the agent whoever available for longest time.
Then when its taking the X path, probably you can have an IF condition like (RequeryStatus>0) then route to SG_A and then to SG_B
Regards,
Senthil Kumar