Tha launcher downloading whole game after a new patch (2.4.1.2)

Hi, so as in the topic - I opened the bnet launcher - the game started to update and makes me download whole 30gb… the whole game. And as I read here Diablo II: Resurrected | 4.25 - Bug Fix Updates - 2.4.1.2 the game was supposed to do this update in the background… is there any solution to this?