[OPEN] [XB1] Can’t place windows individually. Only allows auto-placement

I know this is very late, but for future players who encounter this issue, the problem is that you cannot just press L1/R1 to switch placement modes with a window type selected, like you can with floors and walls. You have to switch before you even select the window size, as can be seen in the attached images. L1/R1 still works here, so long as you do not have a window selected.