Possible bug: Installer corrupts USB drive (XP Pro)

Hello,

Has anyone noticed this problem? Install PortableApps.com Suite Standard (Version 1.5.2) to a cleanly formatted 8 Gb USB drive. (Let's call it drive G:) After installing, run:

chkdsk G:

And it will tell that the drive contains errors, and will suggest running chkdsk with /F option to fix them.

However, if you install the Suite Standard to hard drive (Let's call the directory C:\PortableApps), and after install copy everything to a cleanly formatted USB drive:

attrib -s -h C:\PortableApps\*.* /S /D
xcopy C:\PortableApps\*.* G:\ /S /E

And run chkdsk again:

chkdsk G:

The drive contains no errors.

Some notes:
- Operating system used: Microsoft Windows XP Pro [Version 5.1.2600]
- USB drive used: Pqi i261 8GB USB Flash Drive
- Individual portableapp installers (Celestia Portable, Stellarium Portable) worked without any errors. No problems.