I am debugging a workflow and the Update Item step perpetually shows "Select fields to update" when I configure that step. I select the correct field, save, close, reopen and it says "Select fields to update" once again. Why is that? It makes it harder to work with than if it would just hold onto the information that was selected/saved previously. I have the correct data type for the assigned value, and the list column name has not changed. I'm not sure what other causes might be.