Curtains not slotting to windows

This is an issue that I've had for a few years now but it has certainly been getting worse-- I am somebody who frequently uses curtains in builds, and the curtains will only go into very specific places onto the wall, even when the moveobjects cheat is engaged. Recently, I have not been able to find any curtains that slot properly to the windows I am placing them on in recent builds, which has gotten increasingly frustrating. Hoping this is fixable in some way. Perhaps adding slots to the windows themselves for the curtains? Unsure if this is possible, but this has become more of an issue for me following the recent updates.