When you login to your instance the Landing Page such as home page is not rendering the theme settings.
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SAP SuccessFactors HXM Suite
Landing Page is using a different theme.
To check if landing page such as home page is using a different theme navigate to Theme Manager > Fine Tune > Landing Page Theme.
If you do not want the landing page to use a second page navigate to Theme Manager > Fine Tune > Landing Page Theme, and make sure it's set to "Use this theme" see screenshot below:
2537158 - Theme Manager - User Assistance Documentation link
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