Hey Jonathan,Can you tell me how these models are created? If this is photogrammetry, you should select "3D Capture" when uploading to Cesium ion. If you need to share any files outside the public forum feel free to email sup...@cesium.com and we can take a look.Have you tried disabling the globe like in this Sandcastle example? Does the camera behave as expected there? Note that the location of the model in this example is on the surface of the Earth, even if the globe is turned off, placing it at a location on the surface should give you a more stable camera.