As seen in the GIF below, the rotation doesn't rotate the model around its center of mass. I don't know if this is an issue of the model itself, but we used this exact model for testing purposes before without any issues.
With the new barycenter calculation, this problem no longer exists. With each new call of the 3D-Part, the center of mass is recalculated depending on the existing models.
As seen in the GIF below, the rotation doesn't rotate the model around its center of mass. I don't know if this is an issue of the model itself, but we used this exact model for testing purposes before without any issues.