Joystick ignores work area on timeline

I have created a complex animation that I want to assign to a joystick. The timeline goes from 0-4 seconds. The work area, however, is only 2 seconds long and runs from 1-3 seconds on the timeline.

When I press play, only the work area plays – as expected. However, when I assign this timeline to a joystick, 0% on the joystick corresponds to 0 seconds on the timeline and 100% to 2 seconds. So the joystick ignores the work area. But it doesn’t even use the complete timeline from 0-4 seconds either, only the first half.

Unfortunately, I cannot simply move the start of the work area from 2 seconds to 0 seconds, because then I would need keys in a negative area of the timeline (below 0), which does not exist (see screenshot).

Version: 0.8.02618 R

Browser: Chrome and any other