This bug was fixed in the package xfce4-settings - 4.13.4-1ubuntu2
--------------- xfce4-settings (4.13.4-1ubuntu2) disco; urgency=medium
* debian/patches/xubuntu_lp1653448.patch: - Fix scrolling in the settings manager (LP: #1653448)
-- Sean Davis <email address hidden> Sun, 03 Mar 2019 07:55:14 -0500
This bug was fixed in the package xfce4-settings - 4.13.4-1ubuntu2
---------------
xfce4-settings (4.13.4-1ubuntu2) disco; urgency=medium
* debian/ patches/ xubuntu_ lp1653448. patch:
- Fix scrolling in the settings manager (LP: #1653448)
-- Sean Davis <email address hidden> Sun, 03 Mar 2019 07:55:14 -0500