Please help out a total noob

Hey everyone!

I am currently following the official "Introduction on Visual Scripting" on unity learn. But I have a problem on "Configure your visual script with variables" on step no. 7.

Whenever I duplicate the cube, it only rotates their green wirebox (colliders?) when I press play. If I delete the duplicated cube, it resumes functioning correctly and rotates the material(?) aswell. I circumvented the problem by creating a new cube and added the same script to it. But I'd like to learn it the proper way.

I am doing it on a steam deck if it is relevant.

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Update: If I duplicate the "new" cube it works as intended, both of them are rotating and working well. I must have messed up something with the original cube.

So it is solved I guess.