Log contains several plugins known to cause issues with Gizmo.
All JAR products and plugins.
All third party plugins saitek plugins for x-plane have had various issues of some type.
If this was a core issue with input processing then every single user regardless of joystick make or type would be having issues with binding to the throttle inputs.
Instead we have two people, both of them happen to be using saitek devices. At least one running plugins known to cause issues....
Please try without the JAR and saitek plugins... (they must be moved into a different folder before starting the sim, disabling them once x-plane has started is not sufficient.)