After PPM Upgrade we see issues in the Login Page and  Home Page

Document ID : KB000102426
Last Modified Date : 18/06/2018
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Question:
After PPM Upgrade we see issues in the Login Page and  Home Page. 

1. It shows: 
en - Copyright © 2017 CA. All rights reserved 

it should show: 

Copyright © 2017 CA. All rights reserved 

2. When users login 

It doesn't show the name of the user who is logged. It shows 'undefined' 

Issue is only with IE. 
Using Chrome or Firefox users don't have those issues. 
Answer:
Clear IE caches resolves the issues.