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…
As mentioned in my prior post, you have paused a replay playback which defaults to 4x regular playback speed. Even at regular playback speed, the motion blur has stored velocities and is attempting to calculate the current motion blur values as you move around in the scene. It cannot successfully do this when the playback is paused so the screen remains blurred. This is not a bug, but how motion blur is calculated and behaves when a replay has been paused at 4x playback speed and flying around the map.