I came across a very frustrating bug that prevents me from continuing the game. I cannot enter the fourth and final shard (the swamp plague shard) so that I can fix the sword. I think I maybe did the shards in an order the game didn't like. The last one I did was the darkness shard. After exiting the darkness shard the voices told me the sword was ready, "pick it up and stand as an equal to Helya." So I went to get the sword and I could not get it, I just got the screaming sound where she backs away. Then I realized I Only did 3 of the 4 shards. So I went to the fourth one to complete it and that's where the video starts. I simply cannot enter the shard.
Here's the order I did them in:
1) The shard where you are in a dungeon following The light guy
2) The shard where you look through the masks to change between light and gloom
3) The shard where you move around in terrifying darkness