Conflict between the declinations and the multistore

[Gaja14]

Hi, 

I tried to generate the same group of attributes by selecting them from the list on the right, it is not working.

For example, I have already generated some attributes from the group "Vernis à Ongles 1944" and when I try to add another attribute from the same group, it doesn't generate whereas when I select a different group of attributes, it works.

To generate the attributes from the same attribute group, I have to search for it in the search bar and then generate it so that it saves.

https://www.loom.com/share/1bb8868f25434bba93ef72d5d2cad382

Any solution ?

PS Version : 1.7.8.2

Store : Multi-store

Regards,
Gaja