I have attempted 2 of the light puzzles in the new part of Bjora Marches and both times I opened the final chest, but neither time did it give me credit under the luminiferous achievement list. The first time I thought I didn't get credit because I fell off a plank and died and had to run back, but the chest was still there when I got back and I was able to open it. The second time I didn't die and opened the chest again - in a different light puzzle - but still didn't get credit. I did all the ones in the original part of Bjora Marches OK and got credit for them all, and it did transfer them across to the luminiferous achievement, but I can't seem to get credit for any of the ones in the new part of the map, or at least the ones I have tried, anyway. Do you have to open all the norn chests as well as the final chest to get credit, because I might have missed one or two of those? I thought the main thing was to open the final chest, so I didn't worry too much about the norn chests.
