I have a SP designer 2013 reusable Workflow on a list B that creates folder on Document Library A item using a text Field from list B for the Path/Name of Folder of Item it creates in Document Library Item A .  

The workflow will only run succesfully with user who is an admin - full control user now.

This used to work fine under user with edit - contribute rights, now it stopped working, and users get this:

"The workflow could not update the item, possibly because one or more columns for the item require a different type of information."

It is set to run automatically on created of new item in List B.

Any ideas?  We are on Oct 2014 CU, does that matter?  I don't see anything, and other users who are getting this exact error message seem to be a case where it would have never worked, that is not my case, it works for admin's and USED to work for non-admins..

thanks all!