[quote=xiery]I hope that's a bug: 5 sneak-5AP. Rarity of the sinew was a problem in the previous version at least for me, now I see it at specific vendors regularly in a quantity of 2-5, dears also should drop sinews. Teller of secrets sells the books only once, but there is a possible bug- if you don't buy the books the first time you meet her they disappear after that.
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Are you playing on PS4? I must have encountered a slew of bugs then in the PS4 version.
I have killed every deer, boar, and pig in the game I have found and I am now in the Phantom Forest and have yet to see a piece of sinew in the game or on a vendor.
The Teller of Secrets has never had the books since I unlocked her and I have checked every time I level.
I have encountered all of these issues in both my Single Player and my Co-Op playthroughs. So I guess I should report these issues.