Resized unions changed back

Yesterday I was building a house and made resized some unions i was using as a frame and everything was fine.
Today i realized that the frame and other unions changed back, it had already happened to me some times and I’d like to know how to keep them as I wanted.

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Finally i can create a topic!

I can’t think of a fix for this besides redoing the unions, but I wouldn’t suggest using unions in the first place, because they can be very buggy and laggy.