Mouse Input Not Working for Aiming In-Game

Having an issue with controllers and mouse/keyboard as well. I have a Razer Tartarus Pro (Keypad with a D-pad/Analog switch) so when I first loaded up the game the mouse worked fine in menus. Once in game though my aim drifted to the upper right, most likely Razer's subpar D-Pad has drift.

Solution: Unbind all controller bindings. Mouse now has priority since it's the only input bound. 

Problem now is I like to fly on controller, so I use a Scuf Envision Pro Wireless. So now I have Gunner Aiming bound under controller (Right Stick) but also keyboard/mouse (Mouse Movement), but it doesn't react to mouse input. Bit of a bummer because when in land vehicles I can't aim with the mouse anymore. Really wish the game would just recognize both inputs or if there was a priority toggle for each group of control setting, i.e. Infantry, Aircraft, Helicopter, Gunner, etc. I get I might be on the fringe here with all my input devices.

Same issue, but I can restart the game and its fine again. But this only happens to me if I lift my mouse of the mouse pad and then set it back down with any force, which I frequently lift my mouse while playing to readjust my movement area while playing. Thought it was the mouse so I bought a brand new mouse and different brand and still have the exact same issue.