Calculated value field using js script is not working for newly created project

Hi,

I have created a new project and copied the project config source from existing working project. Reloaded the scripts from Prod server so that it can be visible from link. Even then this calculated value scripts are not working. These are timestamp field, which is showing as none.

The script is when to change the status of a defect to start working it will take the timestamp and place it in actual start time field. In edit custom attribute field the properties are same as it is in working project.

Please help to resolve the problem.