Unable to load asset launching unreal in command line

Hello,

I’m trying to load an asset located in my project. It work perfectly fine when using the editor. This is the blueprint located in an actor I use :

The point is when I try to launch the project from command line, like this :

"UnrealEditor-Cmd.exe" "uproject" /Game/Scenes/Main -game -windowed -resx=1280 -resy=720 -Log -StdOut -allowStdOutLogVerbosity

The asset don’t load and the is valid function return false.

If anyone has a solution knowing that I can’t load manually the asset like putting it in a variable or something, I can have 10000+ assets and they change