I am experiencing a weird behaviour when zooming. hopefully this video illustrates what I mean: https://vid.me/8dUJ
1. (first 10 seconds): if – after a page reload – I don't move the mouse cursor, cesium seems to think that the mouse is in the upper left corner of the viewport.
2. (rest of video): zooming seems to get stuck in a way, or does not react to user input. — at first I thought maybe 'inertia scrolling' on the mac has s.th. to do with it. but weirdly enough, it does not seem to happen when I remove the white gltf model entity (white rectangle)! see this video: https://vid.me/kMpg