I use two external displays and a MacBook Pro. I'm running Mojave 10.14.6. I've noticed a problem with the Dock. Expected behavior is the dock appears when I bring the mouse to the bottom of either the external displays or the laptop screen. This doesn't work. The dock stays where it was located.
This is where it gets weird.
If I want the dock to move, I have to select a window in the display that I want the dock on, then type text into a text field in that window, then bring the mouse to the bottom of the screen. That makes the dock move. Any ideas how to fix this?