Scene Reflectivity Resets

Has anyone else noticed the scene reflectivity not having a prolonged effect?  I notice that the default is set to 1 w/srm^2.  For some of my models, this can tend to wash out the renderings so I lower it to 0.1 or even 0.  The next render will look great.  I'll then go do something else (such as work on another part).  When I come back, if I re-render, often the image will appear as though the reflectivity has been set back to 1.  I'll check the settings and it will still say 0.  I then toggle it up and back to 0 and then wiola, it looks right again.  Has anyone else noticed this??

Thanks for the help!!

SolidworksPhotoview 360