I have a weird problem: sometimes one of my workflows errors, but all the fields are 'green' when viewing the workflow history.
I get this error: The workflow could not update the item, possibly because one or more columns for the item require a different type of information.
My workflow in particular:
I ended the workflow and started it again and then it worked without an error. On other items this error happens too but very rarely.
I cannot find a mistake either.
What my workflow does:
1. Check if title= title of an item from another library with with ID xxx
Check if description= description of an item from another library with same ID xxx
2. if one of them are not equal, update the item in the other library. (title and description).
When the error occurs the workflow is going to step 2 even though the title and description are equal. When I start the workflow again the workflow does not try to update the item and no error occurs.
Any ideas how to troubleshoot this issue in general?