Topic: Update cause whole game to re download?

Hi all , wondering , i had Stalker 2 downloaded and was playing a couple days , then along came a 9 gig update , so at the end of it it just failed , said something went wrong , and the game was suddenly uninstalled and started redownloading it again. Just wondering if anyone had any issues with this , or what you might have done? Game is like 143 gigs without the update , big , long , download. I been playin " The Great Circle " for a few weeks now and nothing happened with it , though i hadn't seen any updates yet , that i know of.