I've tried all the nose options in the wardrobe and none of them will appear or save. The one I have on now (although it's not showing) is the last one on the top row. I'd kind of like my nose back please?

Is your nose over the base layer? @ Lisa [Edit] It seems to be working for me. Have you tried making a hard refresh? Is your nose properly selected and over the base layer? I've seen this issue with the item scramblig unresolved bug (it doesn't update).

It was layered under the base layer, which is weird because I've never touched it before. :/

Maybe you're experiencing the layer scrambling issue to a lower level. Even if we report it, it hasn't been fixed yet and it has been over 3 months.