I have a path with multiple AGV decision zones in series. the rational is the AGV should go one by one dropping a product at each decision zone. however it stops midway as shown in picture 1 with the warning shown. 

picture 2 is the route group definition for the pathway. 

I am wondering why the AGV doesn't continue down the zones in the sequence they are set. 

any help or insight about having one agv serving decision zones in series is helpful.