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  1. indeed manipulator where meant to always thinking that a renderer/camera should be resolved when you are in a RenderWindow (which is always the case here). That logic is “wrong” for our use case here. I did a change a while back that should allow a better resolution by providing an additional argument to the event so a better decision could be made but additional code would be required to make that smooth. I doubt I will have time to look into it anytime soon. Maybe ping me in two month if I didn’t get to it.

  2. See if you can debug it yourself. Otherwise I’ll try to see if I can reproduce and solve it. For me on Chrome/Safari, things seems to be smooth.