Hey @Lasse ,
Welcome to the community! Feel free to Introduce yourself 
to the community if you want to! 
This happens because we are doing some optimizations to make sending and receiving faster. In short, if you have multiple copies of the same element, we create a definition for one, and the rest are essentially instances of the same definition with different transform values (location, rotation, and scale). This makes it incredibly fast to send and receive, especially if you have hundreds of identical instances. If you want more context, you can read the entire blog post below: