Possible way to lose trophy progress on killing related trophies.

[Darthjosku]

I was at 14 chapter of the game then I changed my consoles language when I returned ro game prompt to press square to change in game language to same as console appered I pressed it and when returning to game my medals had reset.

 

Stats were still okay but when the stat hit the number of kills with weapon that should pop the trophy it did not I had to kill about 20 more so that in game medal popped and then trophy popped.

Same with Dyno-Might master i had already killed 3 guys with 1 explosion 4 times but still had to do it 5 times until in game medal and trophy popped. As far as I know Brutal Slugger, Hangman and Steel Fist also were like this. 

 

This also may affect 250 headshot trophy too because my stats say that I have 331 of them but only 100 headshots medal has popped. 

 

So be careful if you are planning on changing language of your console.