I tested for the last 3-4 days on Win10 1903 with the 19.5.1 driver for the GPU and crashes are gone. Managed to move a bit in the game's story and reached the main game leaving Kephallonia. Great game with many interesting gameplay aspects and a beautifully crafted ancient Greece.
Hey man that's great news, i'm glad you got it fixed. I did a fresh install of 1903 too after getting a $12 key for Win10 Pro from goodoffer. Everything works good.
Oh, If y'all ain't played Assassin's Creed Syndicate...two words...play it!
I just got done with it and i put it up there 2nd to Odyssey in the series, better than Origins. This isn't the first time i've played it but i had forgotten what it was like. If you don't have it the summer sales are almost here. Get the Season Pass also which includes Jack the Ripper but not Penny Dreadful mysteries...get it too if your into solving Mystery puzzles.
In Syndicate, You'll get your own gang to control that can cause a distraction while you can sneak in and kill the target. Load up the carriage take them with you wherever you go. Then you got the Batman like zip line that makes getting around the rooftops so much easier. With good characters like Charles Dickens, Alexander Graham Bell, and Charles Darwin to name a few makes for a really good game.