!!!You must ensure that an action is declared only in one mapping context!!!
Each action must have at least 3 keys associated with it
-2 keyboard [1 can be "none"] and 1 must be gamepad.
Update mappings from your Input Mapping Context if you add one.
For UE5.3+: Enable User Settings (Experimental)
Setting Behavior => Override Settings
Player Mappable Key Settings =>Player Mappable Key Settings (Experimental)
For UE5.1
Is Player Mappable => True
3. Name, Display Name & Display Category
..And only For Gamepad: Display Category => "Controller"
to separate actions from the controller menu widget