-When at Kaer Morhem after the death of vesimir, when yennifer talks to triss about the lodge, yenn says to triss "speak to keira (metz)", but i killed her. so this makes no sense at all. I guess this was a hard scripted text?

-Also its very akward to see triss at kaer morhem when geralt arrives there first time and triss merigold does not introduce herself. I have done her quest when it was avaiable and she was send off befor i could ask for her help at kear morhem. So some kind of greeting would be good here.

Sidemark: is this even the right place to point this out? -.-

No. GOG is a sister company but only a storefront. The developer is CD Projekt Red. You can find their forums here.