Kentico AuthenticationHelper.ImpersonateUser

I have an admin tool I use to allow me to impersonate a user (can't use the built in Kentico tool as I need to do other stuff with 3rd parties).

For the last few years (from Kentico 11) I have used this method without any issues:

private static void ImpersonateUser(string alias) { var userToImpersonate = GetUser(alias); AuthenticationHelper.ImpersonateUser(userToImpersonate, null, true); } But now I see the method only works for administrators. However, the above method doesn't throw any exceptions. Are there any permissions I can set for my custom UserImpersonator role? I don't want to give them admin rights.

I'm Using Kentico Portal Engine v12.0.65