Mount Keybinds failing in S04E06 first mission

[Locce.8405]

The mounted keybind controls during the flying part appear to be a bit dodgy. Maybe it is because this is a quite special mount, but only skill 1 and 4 seemed to work properly while skill 2 and 3 only responded to mouse-clicks. This makes that part pretty tricky to manage when you use your mouse for steering and can't reliably keep the mouse cursor neer those skill buttons.

[Latinkuro.9420]

While in the underworld part of the 1st mission.skill 2 requires a target to work, there is nothing to target so I can't use the skill. essentially trapping me in an infinite gameplay loop.