Creating a Project with required custom field using CSOM : CustomFieldRequiredValueNotProvided

I can successfully create a Project using CSOM if the project doesn't have any required custom fields. 

The moment i change one of the custom fields as required, i get the error

PJClientCallableException: CustomFieldRequiredValueNotProvided

I know how to update custom field values, and the values do get updated as long as custom fields are not required. 

Has any one been able to create a project with required custom fields using CSOM / JSOM or REST yet? 

Hammad Arif EPM Advice Blog