When rotating a camera about an actor the motion blur starts to create blocky/pixelated artifacts around the character in a halo. This can be further exaggerated by moving the actor while rotating the camera.
This did not occur when tested with the same exact steps in 4.11.2 Binary
Alternate Repro Steps
USER PROVIDED REPRO
You can also get this artifact to occur while not in motion however moving forward exaggerates the effect.
Pixelated artifacts appear around the character.
The motion blur effect remains consistent even when rotating camera.
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