See the attached screenshot. I loaded an ODT file into LibreOffice containing my resume, which included date headers meant to be displayed using the Ubuntu Light font. However, The font is rendered very heavy, even heavier than the plain Ubuntu font!
In the screenshot, the top line is regular Ubuntu, while the second line is *supposed* to be Ubuntu Light. Ubuntu Light does appear correctly in the font drop-down, however.
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: libreoffice-writer 1:4.4.4~rc3-0ubuntu2
ProcVersionSignature: Ubuntu 4.1.0-3.3-generic 4.1.3
Uname: Linux 4.1.0-3-generic x86_64
ApportVersion: 2.18-0ubuntu7
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Aug 29 19:14:51 2015
InstallationDate: Installed on 2015-08-29 (0 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150828)
SourcePackage: libreoffice
UpgradeStatus: No upgrade log present (probably fresh install)
This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.