The Additional Old World Building Skin Menu seems to display "invisibly" over the Lifestyle Good List. The Mail goods are most affected to the point where I can't even enable Regional Mail. It affects all Residences, Old World, New, etc... It occurs after Clicking the Skin option during a playthrough. Restarting the game seems to fix the issue, but it comes right back if I use the skin customization. No Mods, All DLC Enabled.
Screenshot below. Mouse does not show, but it's over the Regional Mail Icon. Clicking does not enable and the tooltip for the Brick Skin displays. I can enable Local and International Mail by moving my mouse to the extreme left and right of the icons respectively. Does same thing over Lifestyle options in other Regions.