[2015.12.27-13.22.13:296][877]LogLinuxWindowEvent:Warning: Suppressing too large relative mouse movement due to an apparent bug (-101, -13 is larger than treshold 100)
in the terminal when running UE4Editor with the content example…others have reported the same issue with different projects.
What are you doing when this message occurs? I am not seeing any message like this when moving around the editor or when playing in the level. Can you provide more detail about what exactly is happening?