Incorrect chance distribution in VSA

I've been getting this bug occasionally with it started about 2 weeks ago. It does not happen every game, but one of the occurances happened when I was at 9 stars. I understand how chance distribution works in the game, but it should not be the case that someone with a lower OVR team is getting nearly half of their chances as Great chances and 0 Basic chances while I get 2 Great chances max and have to deal with a few Basic chances.