If Grids in links are assigned a Scope Box, they no longer completely obey View Range (in Plan Views). The Scope Box must intersect the lowest Level, which could be ridiculous (if it's at elevation 0, and the others are at true elevation), since that would mean the Grids would extend that far. See http://wrw.is/how-to-show-linked-scope-boxes-and/ (and before I found the reason: https://autode.sk/2DIJzo4)
If the Grids intersect the view, they should show up. Period.