Current Tome / TOME V - Unleashed - Deadly Deceit Challenge Bug

So I was playing Killer (on PC) and so I selected one of the current tome challenges and one of these are either bugged for sure or I'm dumb,

The challenge was: gain 20,000 BP in the Deviousness category. However after every game I got like 200 points towards the challenge, it didn't matter if I MAXED OUT the Deviousness in a game I keep getting around 200 points instead of the accurate number, it happens after every single game when the challenge is selected, I have tried unselecting it re-selecting it and playing a game after, doesn't seem to work, playing a game of survivor and completing a survivor challenge then re-selecting the challenge and doing another game

also does not work, so its like I had to play 100 games to complete a challenge that gives 15,000 BP

Unfortunately I haven't been able to record footage since I have nothing to do that with.

Does anyone else know what I'm talking about?