Hola Darleith. I was recently working on updating this new highway, like you, to Cosquin and other towns of Punilla Valley.
I noticed you added new features such as tunnels and bridges when old roads or streams intersected the new highway. It seems some of them, are nonexistent actually, could be? When I edited the highway I checked some satellite images of the construction trying to figure out where those crossing roads were. I didn't add in my edition if I wasn't absolutely sure of its location, despite it will trigger some issues. 
I would like to ask you if you are sure of the location of the intersections. Maybe you put them just to fix that crossing issue.
I have some clues that are not in the right place at least, but I haven't a recent satellite image or travel the highway to confirm.
If you are not quite sure, could you please revert them? Remember it is not mapping for the map but for reality. 
Maybe someone else sees the issue and figures out the way the roads intersects. Thanks. Javier