Jason, please install and test xfdesktop 4.12.2 from this PPA:
https://launchpad.net/~xubuntu-dev/+archive/ubuntu/xfce-4.12
Xubuntu 15.04 ships with version 4.12.0 which is affected by this bug.
Jason, please install and test xfdesktop 4.12.2 from this PPA:
https:/ /launchpad. net/~xubuntu- dev/+archive/ ubuntu/ xfce-4. 12
Xubuntu 15.04 ships with version 4.12.0 which is affected by this bug.