Unity menu headings and nautilus icons/text ignoring text scaling factor

[Anthony]

After re-starting Ubuntu following the latest kernel update (which came on Jan 30 or 31), in Unity, the text scaling factor is now being ignored in the menu headings in all applications as well as for file/folder icons and all text in Nautilus and the Dash. It also has no effect on the time displayed in the system tray (though it continues to scale the other icons in the system tray).

In the Universal Access settings, I have the text size set to large, which changes the text scaling factor from 1.0 to 1.25. I have also tried changing the text scaling factor through the Unity Tweak Tool, but that doesn't make a difference.

An attachment is including showing a few screenshots. Notice that the menu headings are much smaller than the menu items in the dropdown, and the time display is smaller than the icons in the system tray. The icons and text in Nautilus are also smaller than the menu items, and remains unaffected when changing the text scaling factor.

This is a brand new problem with the recent update. I've been running 13.10 since it was first released, and this problem just started today.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: unity 7.1.2+13.10.20131014.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-15.25-generic 3.11.10
Uname: Linux 3.11.0-15-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Sat Feb 1 13:15:42 2014
DistUpgraded: Fresh install
DistroCodename: saucy
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:0589]
InstallationDate: Installed on 2013-11-14 (79 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: Dell Inc. XPS 12 9Q23
MarkForUpload: True
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-15-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash video.use_bios_initial_backlight=0 vt.handoff=7
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/06/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A04
dmi.board.name: 00WT0D
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A04
dmi.modalias: dmi:bvnDellInc.:bvrA04:bd11/06/2012:svnDellInc.:pnXPS129Q23:pvrA04:rvnDellInc.:rn00WT0D:rvrA00:cvnDellInc.:ct8:cvrA04:
dmi.product.name: XPS 12 9Q23
dmi.product.version: A04
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.46-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.2.1-1ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.2.1-1ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.14.5-1ubuntu2~saucy1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.904-0ubuntu2.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
xserver.bootTime: Sat Feb 1 10:41:17 2014
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 957
 vendor LGD
xserver.version: 2:1.14.5-1ubuntu2~saucy1