The issues people are seeing with ratings are due to the fact that the game now combines several internal ratings to determine the displayed ratings. I wasn't aware of this when I converted the OOTP9 version of these utils to OOTPX. If you review the threads in this forum for neags' dev tracker and Getch's OOTP OU, you'll see that they have the same problems.
Your options are the following:
1. Install and use given the understanding that the ratings reported are based on the internal ratings.
2. Do not use the ratings or development tracker until it's addressed.
Either way, pestering Markus and Andreas to either release the formula or export the reported ratings in the SQL dump would be helpful.