Version: xfce 4.18 Using xfce4-panel, with autohide feature enabled, all will be well at first. The panel hides quickly and completely. After a while (minutes or hours) the panel stops hiding completely. It appears stuck or slowly 'creeping' shut. Running `xfce4-panel -r` returns normal (quick and immediate) autohide, but the problem returns in not too long. Namaste.