I created nice, large 512x512 ICO files for use as icons for my shortcuts. However, for some reason, when I scale them up some of them just do not scale. I've lived with it for 3 months, but, last night, many more suddenly began suffering from this issue. I have no idea what's causing it, but it's very annoying. I have tried renaming the icon files, but the issue still persists. It doesn't matter if I create new shortcuts or rename the ICO files, the problem still continues.
Here, Gotham City Imposters, Left 4 Dead 2, Super Hexagon, and Surgeon Simulator 2013 are exhibiting the issue (icons not scaling up) while Magicka, Natural Selection 2, Orcs Must Die! 2, Sanctum, Sanctum 2, Serious Sam 3: BFE, Team Fortress 2, and Trine 2 are working just fine.
Could anyone help me remedy this problem? I'd love for all my icons to be seen at full size.