Version

Slic3r-master.2017.12.15.1558.54205b7.32bit

Operating system type + version

Windows 7 Professional

Behavior

Screenshots attached.
Moving an item on screen causes the axis colours to extend.
With my configuration and attached stl file added, (I have added the same file twice and then duplicated each of the files to allow me to have two rotated, two not.)

Does not break usability, just looks a bit messy.

STL/Config (.ZIP) where problem occurs

PLA Config and stl.zip