I freeze a few players, and their stats start to decline again after a bit. I check their page again on FMRTE, and it shows that they are still frozen.

I don't get why this is happening. 

I have the same thing happen.  I save and restart and things are ok for a few games and then it happens again.  This is new after the latest revision.

Seriously. What's the point of paying for FMRTE when it won't do the one thing I really mainly use it for?

fmrte is the most stable and best editor available by a mile

 

may I suggest if there is an issue reporting it in the right forum ...bugs

 

and make sure you are running app correctly first