Xbox - Predator Aiming cannot be set on a different button

Xbox Controller. Predator Aiming cannot be set on a different controller button. When I set the Aiming on (RB) and set the Leap on (LT) my Predator in the trees still both Aim and Leap at the same time. But Its happening only when Im in the trees. If Im anywhere else on the ground, Aiming and Leap is working fine.
Its a bug.
I should be able to set the Aim on whatever button I want. But Im not able to do that.
Once again, if I set the Aim on (RB) and Leap on (LT) my Predator in the trees always Leap and Aim at the same moment. Aiming function shouldnt be fighting with the Leap function.
In this case, everytime when I want to Leap from the tree, Predator is always involuntarily aiming during the leaping selection. Its very annoying and it constatnly reveals my position in the trees, and also shortly after I Leap from the tree, my Aim keeps getting stuck. Its a problem.
Due to this Im not able to set my own controls for the Predator, even if the game itself has this option.
Please fix this issue. Its really bad that I can change the controls, but it doesnt work properly.