Version:           2.14 (using 4.4.2 (KDE 4.4.2), Kubuntu packages)
Compiler:          cc
OS:                Linux (x86_64) release 2.6.32-22-generic

When trying to unzip a file that has a square bracket (like test[].txt) via drag and drop or by choosing "selected files only" in the extract window, ark will silently ignore that file. However, if I select "all files" in the extract window, everything works.

to reproduce:
touch 'hello[.txt' hello.txt
zip hello.zip 'hello[.txt' hello.txt

Now, open hello.zip with ark
try to drag and drop hello[.txt to some dir in dolphin, silently fails.
try to drag and drop both files to dolphin, hello.txt is extracted, the other is not.
select hello[.txt, go to the extract window, choose "selected files only", silently files.
select both files, go to the extract window, choose "selected files only", silently files (even hello.txt!).
go to the extract window, choose "all files", both files are extracted.

I tried it with a tar.gz file and a zip file with special characters other than an opening bracket and it didn't happen.

Thanks in advance :)