Description of first image passed to all images

Hi there,

i'm using ImageField Tokens to dynamically create the alt text, setted up like this:[title-raw] | [field_image-filefield-description]
When i upload multiple images per node the problem is, that the filefield-description of the first image is also passed to all other images, instead of using the own description of each image - so the alt text for all images are same.
All relevant modules are up to date.
Does anybody knows this problem?