Missing vertical "quick open/close "button on left panel

The left panel doesn’t have the vertical "quick open/close "button like the right panel. The React Flow pane origin is in the top left corner, which is connected to the left “activity“ side bar. Since the vertical "quick open/close "button is a floating element, observing the position of the slider, it resets when the panel is closed. This causes the button to break and attempt to dock to the left of the screen, and not the panel.