ACT NOW: The Alteryx team will be retiring support for Community account recovery and Community email-change requests Early 2026. Make sure to check your account preferences in my.alteryx.com to make sure you have filled out your security questions.
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Well.. that's annoying! We will fix it ASAP, unfortunately we don't have time to get it into the 2019.2 release, so it will be fixed in 2019.3. Thank you for reporting this.