After last update i have this graphics error in the 1.0 editor, with motion blur ON, no matter the state of the blur, high, low etc...

I can't see your image.

Edit:
I was able to find some blurring, this occurs only if stereoscopic mode is disabled, and you're rendering to viewport that doesn't cover the entire screen.
I've just fixed it and will work ok in next release.

Thank you !