Linked .scss file being picked up by ShowMissing
As the title suggests, there is a linked scss file that is being picked up by the tool.
Side note* on a blog post somewhere it is suggest double clicking on the error will take you to the file location on the Solution Explorer, this is not the case for me.
VS 2015 (Update 3)

Interesting.. any chance you can paste in the relevant part of your csproj file? Is that a linked file that is pointing to an actual file in the same location?
@flcdrg
<Content Include="..\..\..\Stratus21Shared\Stratus21Shared\Stratus21Core\Content\Stratus21Core\scss\mixins\contrast-color.scss"> <Link>Content\britannia\sass\mixins\contrast-color.scss</Link> </Content>
What we have is a build task which makes a physical copy of the linked file too. This isn't an issue for .js files or other types, only .scss files it seems.