Today I faced some weird happenings while examing those Y Glyphs. When I earlier in morning played alone I found again those Glyphs and got that Checkpoint... Done thing while in dead end alley with one dead Elite. I decided give a call to my firend if he could come to my place and help me find a door, for instance, what that Glyph may have opened. While we went once again to that dead end alley, we weren't able to see those glyphs. I was literally shocked and decided to go checkout those glyphs where are more dead Elites. And we weren't able to spot those Glyphs neither! We were playing wiht one console and we set difficulty easy and had no skulls on. Unfortunately we didn't check out stonehenge room for Glyphs. Could this somehow mean we should be investigating those Glyphs alone?