Managed to get Private Mode and S Health working with Xposed. I factory reset and do it again. Just don't enable Private Mode before enabling the option to bypass secure storage. After factory reset, root, install and enable Xposed Framework, install and enable Wanam Xposed, reboot, tick the option in Wanam Xposed, reboot, and the try Private Mode. Should be working then.

Hope to see ways to enable this when we enabled Private Mode before we install Xposed.