Hi JoshuaTanton-3752,
Welcome to our Microsoft Q&A platform!
Here are some steps you can refer to.
1.Modify the "Scheme" to "Automatic Provisioning" and check if it works.
2.Clear all provisioning profiles under path ~/Library/MobileDevice/Provisioning Profiles
.
3.Check if the bundle ID in the Mac is consistent with the bundle ID of your project.
4.Follow the document Manual provisioning for Xamarin.iOS to create new profiles.
6.Update the VS to the latest.
5.If all the steps doesn't work, try to report a problem on Developer Community.
Here are some threads you can refer to.
Regards,
Kyle
If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.