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Mail Preference keeps changing since High Sierra Update

Since the update to High Sierra, a Preference I set in Mail keeps changing itself.


I prefer the Classic Layout which is chosen from Mail > Preferences > Viewing and this takes effect correctly when I set the Preference, but it keeps dropping out every third or fourth launch so Mail reverts to the modern layout. Anybody else seeing this?

iMac (27-inch, Late 2012), macOS Sierra (10.12.6)

Posted on Oct 8, 2017 7:00 AM

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Mail Preference keeps changing since High Sierra Update

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