Hi @Kyle Murphy
When Microsoft Security Defaults are turned on, they enforce stricter security measures, like requiring multi-factor authentication (MFA) for everyone and not allowing the "remember MFA on trusted device" feature. So, if Security Defaults are active, the "Days Trusted" setting won't work.
To use the "Days Trusted" feature, you'll need to turn off Security Defaults and switch to Conditional Access policies. This switch will help you in creating other custom policies also which u might need.
For more info on CA policies,
please follow,
https://learn.microsoft.com/en-us/mem/intune/protect/create-conditional-access-intune
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