One of the animators here is having exactly the same issue. We're also having trouble tracking down exactly what causes it. At first I thought it may be to do with an export script which may have been disabling redraw but it seemed to happen recently even without running any of these scripts. I'm currently thinking it may…
Well that's odd.. Because I have just tried this mel script again, after
kolayamit reported it as working, but it still doesn't work for me. I am now with Maya 2016 Extension 2 SP1. Viewport keeps updating only after moving the perspective camera. Also, Tool Settings don't show for the tool I select. This bug is such a…