Something else just came to mind. For your program, I was assuming that you did it earlier, but did you make sure to include
Qt Code: 
  1. #include <time.h>
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to your includes and
Qt Code: 
  1. srand(time(0));
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to the beginning of your code execution? If you do not initialize your random number seed, then you will be generating
the same random numbers every time your code executes.