I have run into a problem with the Word Wall at Mount Anthor not functioning correctly. I discovered the problem in an earlier game and thought maybe the save had become corrupted due to mod usage. I completely removed the game and all files. Reinstalled the game and began to play through casually until I reached the wall again only to discovered that the wall was having the exact same problem as before. I never had problems with word walls not working before 1.6, this is the only time it seems to happen from what I can tell.

What happens is you approach the wall after killing the dragon, you can hear the sounds of the wall; but, there is no glow. I had no quest for this and I have only gathered a few other shouts, since I am still early into the game.

There is a console command work around being passed around on the web for this; but, I don't like messing with shouts like that, as it can create issues later in the game.