[2020] Next Weapon keeps binding itself back to scrollwheel whenever I restart game.

Really annoying as my muscle memory for tribolt is scrollwheel down but I used G for grenades in QL so I'm using G for grenades in dbt now but I still sometimes try to switch to tribolt lol and it can screw me up switching to a random gun. I was thinking I could try binding it to a random key I'll never accidentally press, but wanted to report and see if anyone else is having the issue too.

Interestingly, previous weapon never rebinds itself (cause scrollwheel up I have bound to sg).