Workflow not working

So i have made a workflow to add some default values that are coming from other modules and adding this in some other module on after create
now the issue is i am adding atleast 5 values by this method now out of 5 4 are added successfully but one is not adding . i have checked the seesions of WF it is showing status as completed

You need to share the step where you add the values.
The field data types and expressions are where the problem most likely is.