This bug which was reported in .60 has reoccurred for me: https://feedback.bistudio.com/T118387

I use Windows to reverse my mouse buttons since I am a left hander. So my right click is left click and vice versa.

I have no issues with this in any other game other than DayZ. At some point since the last update this started happening again. I cannot for the life of me figure out why. My friend has a similar setup since he is a left hander too - mouse buttons reversed in Windows, and it's working fine for him.

Shooting and aiming is fine, it's just the menu's and inventory system which are using the wrong buttons. They seem to completely ignore any mouse setting in Windows.

I have reinstalled DayZ completely and removed all workshop content.

I have reinstalled Windows completely.

I have tried different mice, and different USB slots.

I have tried changing the mouse settings in-game too.

I am using Windows 10 Pro
Version: 1909
OS Build: 18363.720

Mouse: Zowie ZA11 & Logitech G900 both been tested.