Jet left analogue faulty when boost is active on consol!

When my jet custom controls are the following.

1. Pitch up, Left analogue up

2. Pitch down, Left analogue down

3. Afterburner on click

This is what happens when my afterburner is active.

1. Pressing/holding Pitch up will maintain afterburner

2. Pressing/holding Pitch down will cancel afterburner

Essentially only when afterburner is active, the system is still considering those 2 buttons as throttle up and throttle down, even though they are not.

Does anyone know how to fix this?

Thanks