see my video, in my parameters, that evolution would start after 20 stagnation.
but the video can see that when 20 goes the evolution is repeated (that's good)
but ... the next generation will never get a 2 or higher generation ...( from 1 minute video)
https://drive.google.com/open?id=18JT1PtfOExZLt85fX7ntpB-cETacpc5W
Status changed from Waiting for information to Fixed
from video it is visible that the evolution was restarted again after 2 generations, I don't know why without seeing your config.