Issue with centering view/camera

[Stab/ZG26-Ruhland]

Hey people, I haven´t been around in these forums for about one year now. I recently updated my game and now I am facing some issues with key mapping. I´ve searched the forums but maybe missed something. So here is my problem:

 

When I bind an action (lets say RPM down) to my Numpad 5 key, I get the little square saying that there are two actions on one key. The other action is "inpcam_rotate_gopro_yaw_center" which centers the view when I want to lower engine RPM. I didn´t find such an action in the settings, so I opened current.actions and current.map files in the input folder. I found "cam_rotate_gopro_yaw_center" bound to Numpad5 and edited them to another key. But the problem still exists. The moment I hit Numpad5, the view is centered. I checked both files again and they are fine (no action to Numpad5 except RPM down). Now it gets strange: when I am shutting down TrackIR5, the problem disappears until I switch it on again. The TrackIR hotkey for center view is on the joystick, so this can´t be the problem. 

 

Any clue what kind of witchery is going on here?