This is weird. The documentation says:

    my $file_map = $mech->saveResources_future(
        target_file => 'this_page.html',
        target_dir  => 'this_page_files/',
    )->get();
[download]

... and the target_dir value is used to create the directory where to save the resources. Can you maybe show some code that demonstrates the behaviour?

Despite my regression tests, tab => 'current' seems to be broken for many people. This is still an issue under investigation unfortunately.