Some of the dialog windows always appears in the center of the screen, no matter where I positioned the window the last time I used it. I believe the intended behavior is for the dialog to open in the position it was last in before being closed.
Some of the dialogs experiencing this behavior:
Edit Text Style
Layer Effects
Edit Brush
It’s frustrating because the first thing I usually have to do after opening one of the above dialogs is move the window to where I want