@Jude525, thanks for the helpful reply. Like you, I seem to rely heavily on recoloring all kinds of things in my houses (once i discovered that I could lol). Now I know that the recolored things inside the houses will hitch along for the ride. :)
I checked out the builds that you mentioned and noticed the floor tiles in the Romper playground. What a handy tool this is! It looks like you had fun designing that playground and recoloring the carousel. A few months ago, I thought I didn't like most EA floors or walls, and it was frustrating, but once I learned about the recoloring/pattern changing tool, the sky opened up. It's actually pretty amazing what you can do with a tiled floor! Now all my builds are tweaked. :)
And you pointed out a very good reason to have a back up for your builds. I have to work on that.
*edited for clarity