A user with no rights in the modern ux will continue to call the userContext and the brands API's when they login to the MUX
Steps to Reproduce:
Expected Results: The user logs into Clarity and is shown their 'home' page with the message 'Welcome to Clarity PPM! You do not have permissions to the new user experience.'
Actual Results: That screen displays but the Home icon is flickering and if the Developer tools are opened you can see the browser constantly pinging the userContext and brands API until the page is unloaded.
Release: 15.9.1, 15.9.2, 15.9.3, 16.0.0, 16.0.1
Resolved in 16.0.2