Something maybe the Unofficial Patch team can fix.
I play with the Jump button (default: triangle) and Character Menu button (default: circle) swapped, but then when I try to access my Load Order in the Mod Menu, by pressing triangle, it backs out to the title screen/main menu. Only by swapping back to the default controls, can I access my Load Order in the Mod Menu.
I also play with my shoulder buttons swapped but they have no effect on the issue. It seems to only have problems with the triangle buttons assignment. As even with the custom controls, the circle button still acts as the Back button in the Mod Menu.