ok, trying to rethink and recall EXACTLY what i did in detail, i think i remember doing something i never did before.
When opening the project settings to change my game version before a new clean compilation, i usually just click “project settings” and then make my changes.
This time, after opening the project settings, i also displayed “all settings” and changed the game version from here.
I can’t remember whether or not i closed the project settings windows before closing the editor.
Could there be something in the projects settings that could alter the way visual studio looks for includes when compiling ?