Hi Team,
As per the below diagram, the issue is missing approval in Business Approval stage.
When requestor raised request, it goes to "Business Approval"(Customer) and there whoever part of the group member they can view the request in their approval queue and they approved the request and it would reach to "Genpact FAP REVIEW" stage.
Now member of the Genpact FAP Review(Agent) group, can able to see it and if they send it back to 'Business Approval(Customer) stage, from Genpact FAP Review, then the Business Approval(Customer) wont be able to view the request in their approval queue in customer portal.
So, Cold you please check and advise us on the below scenario to fix the issue. 
Can anyone advise me on this ticket on priority?