An allow access rule is not applied to new users, throws an error when trying to test the access policy

I am trying to add a new user to a policy for an Application and it throws an error. Specifically, I am adding a user under “Create additional rules” by email (I also tried adding the user to an allowed group). It successfully adds the user to the allowed-to-access user list. However, when the user attempts to access via OTP, it does not email the code. Also, when I try to test the policy, it gives an error: “Looks like the app ran into an error. t is undefined”:

If I instead enter an email I previously used in some other apps, it works fine. So, the error only affects the two new users that Cloudflare has not seen before. Thanks!