I am still getting this issue in JustCode Version Q1 2016 SP1 (2016.1.1422.2). I am using Visual Studio 2013 Professional 12.0.31101.00 Update 4.
I have tried unignoring problems but there is no change. Are there any other settings that may resolve this? It's a frustration to re-enable the default syntax underlining every time I start Visual Studio.