Problem Description
Change size of object mirrored turn the object not_mirrored
Here a test https://dl.dropboxusercontent.com/u/723 ... index.html
USE SPACE TO CHANGE SIZE
CApx https://dl.dropboxusercontent.com/u/72359481/C2200.capx
Construct 2 Version ID
200
Basicaly is not an "BUG" , its an editor "problem" fix this probably will bug a ton of games. So to fix this in the code, never change the y and x at same time of a mirrored object.
Hmm
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Closing as by design - mirroring and flipping just mean inverting the width and height to negative sizes. If you set a positive size, it will override this.