[Plugin: NextGEN Gallery] Watermark dont work in bulk actions

Hi.

When i update the plugin the watermarks dont work fine.

I try to watermarks fullgallery, results a refresh page. and turn the page one.

When i open the gallery and i try to watermaks the firts 50 photos on first page, the watermarks works fine.

When i try to put watermaks ond page 2, or 3. The results is a refresh page and turn on page one again;

Server Setttings:
* Operating System : Linux (64 Bit)
* Server : Apache
* Memory usage : 47.54 MByte
* MYSQL Version : 5.1.54-rel12.5-log
* SQL Mode : Not set
* PHP Version : 5.2.17
* PHP Safe Mode : Off
* PHP Allow URL fopen : On
* PHP Memory Limit : 64
* PHP Max Upload Size : 50M
* PHP Max Post Size : 8M
* PCRE Backtracking Limit : 500000
* PHP Max Script Execute Time : 30s
* PHP Exif support : Yes ( V1.4 )
* PHP IPTC support : Yes
* PHP XML support : Yes

Graphic Library

* GD Version : bundled (2.0.34 compatible)
* FreeType Support : Yes
* FreeType Linkage : with freetype
* T1Lib Support : Yes
* GIF Read Support : Yes
* GIF Create Support : Yes
* JPG Support : Yes
* PNG Support : Yes
* WBMP Support : Yes
* XPM Support : Yes
* XBM Support : Yes
* JIS-mapped Japanese Font Support : No

Sorry if is duplicated.
Thanks 4all