Dock & Panel only auto hide if there is an active window/app on that display/screen

[Matt-1-2-3]

If you set the dock and panel to auto hide, they will ONLY auto hide if you have an active app/window on that display. Auto hide should mean auto hide always.

I have 2 displays, an HDMI and display port. If I open Firefox on the HDMI the panel and dock will hide on the HDMI but not on display port. If I drag Firefox over to the Display port monitor then on the HDMI monitor the dock and panel re-appear on the HDMI. On the DP monitor both panel and dock hide when Firefox moves there.