call to more than one actor

[anonymous_user_7dfcb09a]

I have created an actor blueprint with a cube and a dynamic material on it. For testing I have a setup with random color in the level blueprint.
If I drop one instance in the scene I can switch the color, it works. BUT if I drop another instance than only one cube will work correctly.
How can I call to both cubes ?

Dynamic material setup:

Level blueprint:

[Mhousse1247]

use foreach loop

[anonymous_user_7dfcb09a]

@Mhousse1247;203899

use foreach loop

Can you explain a bit more because for blueprints I am a beginner. Thanks

[Mhousse1247]

Blueprint Essentials: For Each Loop | 12 | v4.2 Tutorial Series | Unreal Engine

[anonymous_user_7dfcb09a]

Yes, it works.
Thank you very much