I have used 4.2 version of Unified Service Desk and IE Version 11.0.120.
Login page show Script Error. It's happen while it goes to 2FA verification page and stop working. So i can't login to USD.
https://aadcdn.msauth.net/shared/1.0/content/js/ConvergedSA_Core_Mo6I0DsW-MZchJUID3ZcbA2.js