Scroll bar is not displaying for MessageBoards for iPad landscape mode

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.0 M3
• Fix Version/s: 6.2.2 CE GA3 , 6.2.X EE, 7.0.0 M1
• Component/s: Frontend Infrastructure
• Labels:
  • QA-TP
  • ee-ts
  • liferay-fixpack-platform-25-6210
• Branch Version/s:
  6.2.x
• Backported to Branch:
  Committed
• Story Points: 5
• Fix Priority: 2
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/18025

1. Login to portal using PC
2. Create a site page with 2 columns(50/50)
3. Add a Message Board portlet to the first column of this page
4. Add two threads
5. Click on 'Preview' icon and view in Tablet landscape mode
6. Under 'Threads' section, there is a scoll bar which can be used to view all the columns
7. Login to portal using iPad in landscape mode and view the Message Board portlet

Expected Result:
The Scroll bar should display in order to view all the columns.
Actual Result:
No scroll bar is displaying and subsequent columns can't be viewed.

I have attached a screenshot in preview mode.
The same case for Bookmarks portlet.