Thanks for letting me know I’ve marked both things down to fix. The cooking stuff is likely just a database error. The mirror on the wall is a bit more complicated, but I think I know what the problem is. The Z ordering system was redone a patch ago and this is likely an oversight on the system. The walls in your house are special so they likely just aren’t caught in the ordering checks. I’ll look into it. For now if you want you can leave the mirror up you can, when the bug is fixed it should place itself in front of the wall on its own.
I had the same issue with the mirror, but it's fixed now. Along the same lines, though, when I walk up to the wall in the new room, my character disappears behind it now. I don't remember if that was happening before the latest hotfix or not. Also, I just noticed that although the mirror is fine, other furniture goes behind the wall as well, as if the wall were a curtain.