Thanks, @RaananW! I managed to load something now, you were right, the file path was wrong in a way.
Now, I only have to figure out the EnvironmentHelper error, I assume, it’s due to glb-babylon conversion, because the .glb model has loaded perfectly, but .babylon and .incremental.babylon are totally chaotic… I also found a topic with the same problem, here it seemed it’s a Babylon bug as I understand…
Or is this totally normal that without the right EnvironmentHelper these falls apart? I just have no idea how to configure the helper, because I can’t even recognize how the model was distorted, compared to normal.