Having an issue where I switch weapons by just moving my mouse

[Mister Wizard]

I have been having some trouble that just started showing up a week ago. I had a hard time figuring out why I had this issue. I would input an ordinance, then all of the sudden it switches to my primary weapon. The same goes for when I have my sidearm equipped, and my support weapon. It was driving me mad!

I learned that it is simply my mouse input!

If I don't touch my mouse at all, I keep any of those things equipped. But as soon as I start to look around, it switches back to my primary. I have reset my mouse drivers and software with the same issue. I have also used a generic $20 mouse from Walmart with the same issue.

My character keeps switching back to my primary by simply looking around without clicking any buttons or accidental bumps with the mouse wheel.

[Mister Wizard]

I have also uninstalled and redownloaded the game with the same issue

[Mister Wizard]

I also drop items that I pick up like ammunition and the Nuke Drive you carry across map

[Mister Wizard]

I used OBS and a keyboard and mouse tracker to see if there are any anomalies.

I found that there is a slight flick in my mouse input. I have tried multiple USB ports, different mice, a Helldivers 2 uninstall/reinstall, as well as mouse driver uninstall/reinstall, on top of resetting my system multiple times.

For mouse in-game settings: I have tested different sensitivity levels, turning on/off smoothing, and acceleration with no luck.
I have done the same with my Razer Synapse (for my main mouse) of using different DPI settings with again no luck.

I can't push higher levels of difficulty because I can't efficiently use ordiances, and other weapons, as well as carrying items across map.

Here are some video clips showing my issue.
https://streamable.com/7kcx1o
https://streamable.com/upku58
https://streamable.com/c1wl7p

[Mister Wizard]

Update....

So... My switch to primary weapon was programmed to be mouse moving DOWN

Please take the next few minutes laughing at this thread and the last 1.5 hours of my fixing my own issue.