Mobile resource with AGV need solution.

Scenario- Product needs to transfer from machine 1 ,2,& 3 to machine 4.

Requirement - AGV with mobile resource needs to carry product and unpack at machine 4.

Mobile resource should not be dispatch along with product it should always be with AGV.

Problem-   AGV with mobile resource is travelling without the product and not stopping at any decision zone.

Anyone please suggest what is the missing to achive this scenario.

I have uploaded the model.