Winamp 5.666 shows a messagebox about LoadLibrary with invalid path, only when run on BTRFS

reactos-bootcd-0.4.10-dev-630-gb8e98c4-x86-gcc-lin-dbg
BTRFS was selected as boot device during setup and is necessary to see this bug happen

Reproduction steps
-Install Winamp 5.666 from rapps
-deselected "UI interface extensions" during setup to workaround CORE-10774
-when the setup almost finishes and allows you to run the main app

A messagebox about failed LoadLibrary will appear.
btrfs_loadlib.png
btrfs_loadlib.log
Please notice that it does not contain a path to a file, but instead the "documents and settings" folder is referenced and the path seems to be cut off at the first space-character.

This bug does not happen when I install same Winamp with same options on same ros revision but chose FAT32 as FS for drive C.
FAT32.log