Première Rush / Step Forward 1 Frame shortcut doesn’t work

Hi,

I'm using Première Rush 2.5 on a IPAD 9th Generation on IOS 15.4, I also use a Smart Keyboard from Apple (French).

When I'm using the arrow from the keyboard, the shortcut doesn't work. (Every arrow UP/Down/Right/Left)

When I press the "Apple" button from my Keyboard, I can see every Shortcut available, and I can touch on the shortcut whitch works well.

Is there a solution to solve this probleme on the keyboard shortcut ?

Whitch is very useful by the way

Thanks you