When the main menu or centre hud panel is hidden opening any menu, like say the inventory will unhide the panel.
In addition when it becomes visible again this way the button used to hide/reveal the panel remains in its folded in agains the character portraits panel state. Clicking it to reveal the panel moves the button back into the normal position.
[Steps to reproduce]
1. Click the button on the centre panel to hide it
2. Open the inventory by pressing its hotkey (i)
3. Close the inventory
4. Observe the panel is visible again and the button to toggle it is now in the wrong position.
The panel should not be revealed by opening menus like the inventory if it is hidden.