Hi All,
We have implemented best practice suggested by OpenText for SmartUI. Furthermore, we use vanilla CS. We didn't do any customization. Apparently, we couldn't load the full Landing Page on:
CS Version: Content Server 16.2.5 (2018-06), build 428.
Affected Platform: Internet Explorer Version 11.0.10240.17889 (official version for the all users)

It will load very well on other browser (Chrome / Firefox). Kindly refer below:

Appreciate it if someone could give feedback on this matter.