After setting the cases and when i say 'Run >> Start', the total number of virtual threads are displayed say 200 users. So the issue i face is that it takes upto say 140 users and starts reducing the number of threads and finally it comes to zero (i.e. 60 are not executed) and the test does not ends (i.e. the green signal doesn't change to grey signal). Can anyone explain me why such scenario happens ???