Master Data Services 2014 - Error adding Member, throw Exception

Hi,

I have an Exception when i try to add a member in an entity

1- Entity "ProductGroup"

2- Entity "Product" with a Domain Based Attribute (DBA) "PGroup" to points to entity "ProductGroup"

3- Derived Hierarchy based on DBA to limit acces to Product attributes values switched to users

4- UserA has access only to Product attribute PGA

When I haven't any record in Product entity(either it s empty, no records or because i have record but UserA can access them) i can't add a new member, it throw Exception !!!

There is a similar error when you add a member in the page to of the Master Data Services explorer which was corrected in SQL 2014 CU1 according to Microsoft:

https://support.microsoft.com/en-us/kb/2932340

But it doesn't work in my case.

SQL Server Version:

Master Data Services 2014 (SQL Server 2014 SP1 version 12.0.4213.0)

Any help would be appreciated.

Sincerely.