scrolling unfocus libreoffice calc window, contents are not refreshed properly

Ubuntu 14.04 64 bit, Asus i3, LibreOffice Calc 4.2.3.3, 21 April 2014:

Open LibreOffice Calc side by side. Pleasantly surprised, in Ubuntu 14.04 we can scroll the content of unfocused Calc window without first clicking it focus, just hover the cursor over it and scross the mouse scroller. However the content of the scrolled window IS NOT PROPERLY REFRESHED. Content scroll, but two or tree lines of all content are still showing, hence we have repeating contents in the unfocused windows. It takes clicking the unfocused window to focus, scroll the window slide scroller, than the content will refresh properly again.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: libreoffice 1:4.2.3~rc3-0ubuntu2
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Apr 24 11:13:07 2014
InstallationDate: Installed on 2014-04-19 (4 days ago)
InstallationMedia: Ubuntu 14.04 LTS “Trusty Tahr” - Release amd64 (20140417)
SourcePackage: libreoffice
UpgradeStatus: No upgrade log present (probably fresh install)

Additional bug:

When open side by side two LibreOffice Calc windows, each of different file, it happened to me, this is the second time. One of the window just disappear nowhere to find. Two dots are still showing on the launcher, but one window is nowhere to find. On first occurence it was far worse, suddenly both windows is nowhere to find. Close and reopen shows no windows, but dots on the launcer. In first occurence I went to the Ubuntu Software Center, download Libre Office Suite. Then I can ‘see’ the windows again.

I can not reproduce, when or how it happens. Anyway, this is the second time.

Another Bug,

Three windows open (LibreOffice Calc). The third window can not be grab on edge to resize. No pointer icon changed is registered.

Bug #1311980 “content of the scrolled window IS NOT PROPERLY REF...” : Bugs : libreoffice package : Ubuntu . I did file report to ubuntu bug since 2014 April 24. Please do not close this by saying off topic. Which will be not helpful for user trying to get fix.

I second the main bug with Kubuntu 14.04. Although I do NOT experience the 2nd and 3rd bugs. Unfocused scrolling is an extremely helpful feature for managing multiple worksheets at a time.