[dvd::rip] problem with grabbing frame and anime

Hi, gotta say I love this app
been using it for a long time on many linux systems

I am having an issue with ripping Ghost in the shell - Stand alone complex 2nd gig

the copy to the HD goes fine

when DVD::Rip tries to grab an image for clipping I get the following error

An internal exception was thrown!
The error message was:

Error executing command convert /mnt/hda1/rip/GITS_SAC_2G_02x01/tmp/GITS_SAC_2G_02x01-010-preview-zoom.jpg -crop 2x-7+0+4 /mnt/hda1/rip/GITS_SAC_2G_02x01/tmp/GITS_SAC_2G_02x01-010-preview-clip2.jpg:
convert: geometry does not contain image `/mnt/hda1/rip/GITS_SAC_2G_02x01/tmp/GITS_SAC_2G_02x01-010-preview-zoom.jpg'.
at /usr/share/perl5/Video/DVDRip/GUI/Project/ClipZoomTab.pm line 920

googling around I found that -crop and +resize may have something to do with this

I tried an experiment: edited the following file

/usr/share/perl5/Video/DVDRip/Title.pm

and made the following change

      $self->system (
                command => "convert $source_file +repage ".
                           $target_file
                #command => "convert $source_file -crop ".
                  #         "${new_width}x${new_height}+$left+$top ".
                    #       $target_file

restarting dvd::Rip an reopening the project I tried to grab an image.
this worked just fine, I was able to clip/zoom and transcode

though trying to use the modification on a "normal" dvd/movie does not work correctly

not sure if this is a known issue or

here are the versions of dvd::rip and image magik

dvd::rip 0.52.7

image magik 6.2.4.5

NOTE: I have tried the 6.2.9 release of imagemagik and that did not fix the issue either