At some point you can’t even see nothing, you mean that is not a bug ?
Even doing that keep generating noise…
https://dl.dropboxusercontent.com/u/28070491/GIFError.gif
I played many games and you can move when is paused…
When the motion blur have a bug with some component the solution is not just disable the motion blur, the same way when the physics have problems don’t just solve the demo map but the whole engine keep broken…