pcmanfm icon grid sets alternated with desktop font lower than 11px

Tested with all fonts in my system Every font above 12px works fine. When you reduce to 11 or lower it draws: one icon, one space, one icon, one space... Also, making it keep aligned doesn't work, all icons recover their original positions.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: pcmanfm 1.2.0-1
ProcVersionSignature: Ubuntu 3.13.0-30.54-generic 3.13.11.2
Uname: Linux 3.13.0-30-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
Config_pcmanfm_System_Lubuntu: Error: [Errno 2] No such file or directory: '/etc/xdg/pcmanfm/Lubuntu/lubuntu.conf'
CurrentDesktop: LXDE
Date: Thu Jul 3 00:03:05 2014
InstallationDate: Installed on 2014-06-23 (9 days ago)
InstallationMedia: Lubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
SourcePackage: pcmanfm
Udisks_dump: Error: [Errno 2] No such file or directory: 'udisks'
UpgradeStatus: No upgrade log present (probably fresh install)