Hi. Please can you check try disabling simulate print colors (window menu > show printer colors > screen colors ) and then checking if you see a difference on screen with CMYK colors when changing the profile? I'colorProfile.xar I've attached a file containing screen shots of several profiles with and without 'simulate print colors' enabled. A visual difference is seen on changing profiles when 'screen colors' is enabled.
Many thanks
colorProfile.xar
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