FileDownloadPlugin does not like @INHERIT TV

Hello, all. I am using the FileDownload snippet 2.5 with the FileDownloadPlugin 1.2 on MODx 0.9.6. If I set the FileDownloadFolder TV explicitly on the same page as the FileDownload snippet call, all works fine. If I set the FileDownloadTV on the parent page and allow the page to inherit the TV (Default Value is @INHERIT), the page fails with this error:

« MODx Parse Error »
MODx encountered the following error while attempting to parse the requested resource:
« PHP Parse Error »

PHP error debug
Error: array_values() [function.array-values]: The argument should be an array
Error type/ Nr.: Warning - 2
File: /homepages/41/d209020368/htdocs/soworg/www/assets/snippets/filedownload/filedownload.class.inc.php
Line: 258
Line 258 source: $values = array_values($v);

Parser timing
MySQL: 0.0673 s (61 Requests)
PHP: 0.2863 s
Total: 0.3536 s

Is this a bug or have I done something wrong?

Here is my snippet call:
[!FileDownload? &getFile=`[*description*]` &imgLocat=`assets/images/icons` &imgTypes=`fileicons`!]
Although it breaks with simple [!FileDownload!]
When I change @INHERIT back to the explicit path, it works perfectly. Thanks - John