Sorry I didnt get back sooner. I'll check this. It _might_ be due to the app needing to access local folder. Make sure you extract it to somewhere like Documents where you have local access to folders.
The evolving algo may stabilize. Thats kind of normal, where dominant genes basically end up being all over the place. And thus evolutionary changes are smaller.
If you change mutation rates and similar, you should see a mort chaotic system.