Unity 5.6 :Minecraft Wattermelon-like: Metallic Material?

I did transfer my project from Unity 5.5 to 5.6 and from Mac OS Sierra to Windows 7 Pro at the same time. After that I opened it, and, when I saw, my cubes with 0.5 metallic and 1.0 smoothnes materials, they where looking as Minecraft’s watermellons! And that’s not all! All my materials did get a little influence by the pink color, specially when they have more than 0.2 of smoothnes… Any help?

I use a P5W DH Deluxe as motherboard, NVIDIA GeForce GT 8600 as video board, 2GB RAM, a Intel Core 2 Duo e8400, SSD 120GB, HD 500GB. Hope this information helps.

@Galahad_Hohan Code wise, quite a few things were broken if you upgraded to the new version. Changing operating systems wouldn’t change how your graphics look. However, check to see if you have a null reference in any of your scripts that might be referencing the object.