There seems to be a problem with resonate stems, I've just finished 5/5 nascent quest, found the cache. I had 14 Resonate stems, so I tried to combine the first 4 to make the first override frequency key and it combined them, but it didn't appear in my inventory, I tried to do it again and it consumed yet another 4 more Resonate stems and again it still didn't appear in my inventory, I can still to this moment create an endless supply of Override Frequency keys but it won't appear in my inventory. Can anyone help me with this?