Comment 8 for bug 1581854

I have good and bad news.
The good news is that I managed to find a workaround online.
The bad news is that is causes a different problem.

The solution is to put the following line into /etc/environment : export GDK_CORE_DEVICE_EVENTS=1
Link to the original post: https://forum.xfce.org/viewtopic.php?pid=48257

The problem that starts to occur with this solution is the dock crashing when trying to rearrange the icons.

I've also reported a bug with the solution and the bug caused by the solution.
https://bugs.launchpad.net/plank/+bug/1828002
If you struggle with this problem, marking my bug report as "This affects me" would be appreciated. Hopefully, the devs will notice it.