Focused item postioned above list, out of view
With the Whisker Menu configured to show a list of applications....
Upon first use of the Whisker Menu after logging in (or after running
xfce4-panel -r), type the first letter (and only the first letter) of an application name.
The first matching application gains the focus, but this item is not visible in the list (even if it had been visible initially in Favorites). Rather, it is positioned above the list.
To confirm that the invisible item has the focus, press
Enter and the corresponding application loads. Alternatively, press
Up Arrow and the focused item comes into view at the top of the list.
If, instead of typing only a single letter, you type two or more letters, the focused item becomes visible and appears where it should, at the top of the list.
This bug occurs only upon first use of the Whisker Menu after logging in. Subsequently, the Whisker Menu behaves correctly.