Using actions to copy a selection and save to new file

Hi,

I'm trying to create an action to cut a selection out of a number of files, then paste the selection into a new file and name it with a unique name and save it as a png file into a new directoty.

Things are working until the save and rename section.

I'm getting the original file renamed as per the batch naming conventions i've selected, and the new files created aren't being saved.

attached are images of my action, plus the batch run screen. 

Can someone help me with my logic.

thanks!