Hello is there anyone who cant unlock achievements on gog client. I played witcher 3 and unlock like 4 achievements and then after some updates of client or patch of game , i cant now unlock any achievemnts even that a i finish game. Do anyone have same problem as me ? And if yes are there any signs of solving this problem ?

Last week I think I had this problem too. I was thinking I hadnt done anything about achievements.
Also my gameplay hour was not being updated. My gog client setting about starting page is continue previous session so I clicked store looked some game prices and then community. When I came back to witcher 3, it was updated and 3-4 achievements came also with gameplay time.