I have done that a few times, I did it as admin and I also tried to install it on the user account by putting in the admin prompt. If I hit allow once it works for that session but after a logging out and back in I'm back to the same issue.
We have the account setup to restrict user access and in the past before 3.4 we would install on the admin side then login to the User and allow access then be on our way. Now with 3.4 we get the constant permission loop unless I use the 2.8 version but after a reboot it will update to 3.4 and break again.
We are having this issue on all of our Apple/Mac computers since the latest 3.4 version was automatically pushed out. We cannot connect to approx. 100 machines using GTA, for over 2 months now. This is ridiculous. We cannot connect because a non-admin user does not have the ability to allow the Unattended access of the application. We have submitted a ticket but haven't received any positive information about a resolution.