Sep 15 2017
Update on this issue @Petrb - As of Huggle 3.3.0 on macOS Sierra, the shortcuts preferences no longer appear allow shortcuts to even be set (entering any command in results in no change in the preferences panel when trying to set a shortcut)
Jul 13 2017
Dropdown menus seem to work fine, it just appears to be the shortcuts that are not working.
Jul 10 2017
Yes, this was also happening on the stable version.