I recently tripped over this when I created a "reason.h" and discovered that Windows had a file of the same name deep inside MFC.

It is my understanding that that would be solved by placing your file in a local directory called 'inc/' and having:

  #include "inc/reason.h" 

instead of:

  #include <reason.h>

(or just replacing "" with <>). But I have never programmed in VSC before, so I may be wrong.