User Picker Only Showing Email Param for One Person

I am using a Forge UI kit global page module. The module uses a user picker to select confluence users so that I can send them slack notifications regarding updates they care about on confluence. The problem is that the user picker shows my email as a param when I select myself, but it is not giving the email as a param for any of my other users! If you click on their profile, the email is easily viewable. I also added email viewing permission to my oAuth scopes. How can I get the user picker to give me email addresses and/or use a workaround for my Forge app to get user emails so I can send important page changes to my other members?

My manifest.yml permissions:

permissions:
  content:
    styles:
      - 'unsafe-inline'
  scopes:
    - storage:app
    - read:content:confluence
    - read:confluence-content.summary
    - read:confluence-user
    - read:email-address:confluence
    - write:confluence-content
    - read:jira-work
    - manage:jira-configuration
    - read:page:confluence
    - write:page:confluence
    - write:comment:confluence
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