Shortcuts disabled when in Browser mode

Hello world,

I have an issue starting this morning in Aperture 3.4.3

I created several new shortcut for Vignetting, sharpeness, etc... And then suddenly when I am set in Browser mode, all my shortcuts are disabled.

If I change the view to Split mode or Viewer, all my shortcuts are working but not when in Browser mode.

I am always in browser mode as I use 2 Monitor so if anyone knows how I could fix this, I would really appreciate!

Thank you very much and have a good one!