Prerequisites:
Mount flying unlocked
area where mount flight is available

Steps:
1. Be in mid-air on a Flying Mount
2. Change to the hotbar set that matches the "Jump/Cancel Casting" Button
(L1+Triangle on a Sony Controller, which would be Set 1)

Expected Behavior:
The Correct Hotbar is Selected with no upwards movement

Actual Behavior:
The Correct Hotbar is Selected and the mount moves upwards

Gamepad Manufacturer: Sony
Gamepad Model Name: Dualshock 4, Dualsense

Extra Information:
strangely enough, this issue does not occur on the "Cancel" button, which moves the mount downwards