I've had it happen a lot on more complicated creatures. I'm on the desktop app, btw.
A member registered Aug 09, 2017
Recent community posts
Evolution community · Created a new topic Running creature, Simulations doing well, "Best Of" staying still.
You can see it right here. It's been this way since about Gen 10, and continues well into the 200s. My simulations continue to make progress, but my Best Of barely moves. It definitely changes every generation, but it's still staying still. As far as I can tell, none of the simulations are even doing that.