This bug was fixed in the package xfce4-notifyd - 0.4.2-0ubuntu2
--------------- xfce4-notifyd (0.4.2-0ubuntu2) bionic; urgency=medium
* d/patches/lp1763674.patch - Fix preferences display of fade out setting (LP: #1763674)
-- Sean Davis <email address hidden> Sat, 14 Apr 2018 06:27:07 -0400
This bug was fixed in the package xfce4-notifyd - 0.4.2-0ubuntu2
---------------
xfce4-notifyd (0.4.2-0ubuntu2) bionic; urgency=medium
* d/patches/ lp1763674. patch
- Fix preferences display of fade out setting (LP: #1763674)
-- Sean Davis <email address hidden> Sat, 14 Apr 2018 06:27:07 -0400