I am using a Logitech G403 mouse and occasionally when I use the weapon "wheel", the DPI sensitivity setting will change from my chosen 1600 to the base 400 by itself. The only thing I can do is to exit out of the game and reset the preference in my mouse settings. This happens occasionally, maybe 1 in 25 times. BTW, I a left-handed, so I have changed almost all of the mouse and keyboard bindings to accommodate. Thank you!
Hey jaston01! I'm sorry to hear that, I'd recommend running through some basic troubleshooting and ensuring your mouse drivers are up to date.
Let us know if the issue persists!