Why is the number of agents decreasing?

 

Every time I try to run the test to do optimization using mql5 cloud, the test starts with more than 400 agents, but the number of agents keeps decreasing to reach after a few minutes the number of 2 agents!!!

What is the reason, and how can I use the largest number of agents? Egent problem

 
ALI ALI: Every time I try to run the test to do optimization using mql5 cloud, the test starts with more than 400 agents, but the number of agents keeps decreasing to reach after a few minutes the number of 2 agents!!! What is the reason, and how can I use the largest number of agents?

Because those other agents have already completed their tasks and only 2 are outstanding.