Any evolution on this issue? I now have a nice working prototype that only has these strange auto zoom and auto drag behavior issues in IOS. In the desktop versions is working great. Safari in MacOS has some issues too but are probably related with Safari itself and not Verge3D. The main issue is that, if we open in another tab an html5 document with some sort of animation or interactivity, after closing it and come back to verge 3D document, interactivity will freeze. In this case we have to reload the page. However this does not happen in Firefox and Chrome.