I have found a typo.
And only the last two scenes are showing in the gallery.
Viewing post in Chapter 8 now public. comments
Are you using an old savegame? I'd guess there probably are no gallery flags to read if it's from before the gallery was implemented.
I'll try to confirm once I get that download through my slow internet connection.
Edit: Confirming that the gallery does work with newly unlocked scenes. A quick replay with autoskip should unlock everything.