problem with hidden tag and getting values from context

when using a snippet like [hidden kw default:get] with contact form 7, everything goes well. entering the page http://www.example.com/test/?kw=test11 would result in sourcecode like ‘input type=”hidden” name=”kw” value=”test11″ class=”wpcf7-hidden”‘

but when i activate the multi step plugin, the value of the variable kw will not be passed through any more. seems as if the multi step plugin conflicts with the original plugin.

kind regards
gerald