Hello, I can't start the game after today's update, probably related to the new DLC. I don't have a season pass.
I have the latest drivers for my graphics card.
I attach a link to the video how the game starts.

@polkus73 Przeinstalowałem UbiConnect, przeinstalowałem grę. Nic to nie dało. Weryfikacja plików też nic nie dała. Gadałem z supportem na czacie (podejrzewam że to był robot). Stwierdził łaskawie, że nie ma takich problemów i mnie poinformuje przez maila o ewentualnym rozwiązaniu. Napisałem mu, aby poczytali sobie forum, gdzie pełno takich problemów.
Wydaje się, że Ubi ma nas w d***. Nie widzą problemu.
Na forum odpowiedzieli mi, że dziękują za kontakt z ich wsparciem, przepraszają za wszelkie niedogodności. Będą się przyglądać mojej sprawie. Nosz kur....
Aha, jeszcze jedno. Zainstalowałem FC6 na innym komputerze ze świeżym systemem - to samo, nie uruchamia się.

@r_vi
Exactly

I wanted to create a ticket application. I couldn't do that. Due to COVID-19, I could only chat.
I think I wrote with a bot. I don't know for sure.
The agent wrote to me that he didn't find the problems I have. He made me wait for info via email.
I wrote him to read the player support forum. The forum is full of problems like I have.
Ubisoft's support s**ks.

[ 9768] 2021-11-17 18:12:56   [ 7848]   INFO    GameStartPipe.cpp (82)              Starting game session.      
[ 9768] 2021-11-17 18:13:00   [ 7848]   INFO    ApiProcessConnection.cpp (123)          Game with process id 10036 connected.
[ 9768] 2021-11-17 18:13:00   [ 7848]   INFO    ApiProcessConnection.cpp (134)          Game with process id 10036 has been started with product id 5266 (branch: 'default').
[ 9768] 2021-11-17 18:13:00   [ 7848]   INFO    UplayGameConnectionHandler.cpp (384)       Game with process id 10036 connected (API version: 2.8.0).
[ 9768] 2021-11-17 18:13:00   [ 7848]   ERROR   DataOverlay.cpp (109)              Overlay with pid: 10036 not found
[ 9768] 2021-11-17 18:13:01   [ 7848]   INFO    UplayGameConnectionHandler.cpp (384)       Game with process id 10036 connected (API version: 2.8.0).
[ 9768] 2021-11-17 18:13:01   [ 7848]   ERROR   DataOverlay.cpp (109)              Overlay with pid: 10036 not found
[ 9768] 2021-11-17 18:13:05   [ 7848]   INFO    ApiProcessConnection.cpp (294)          Game with process id 10036 disconnected.
[ 9768] 2021-11-17 18:13:05   [ 7848]   INFO    UplayGameConnectionHandler.cpp (334)       Game with process id 10036 disconnected.
[ 9768] 2021-11-17 18:13:05   [ 7848]   INFO    UplayGameConnectionHandler.cpp (334)       Game with process id 10036 disconnected.
[ 9768] 2021-11-17 18:13:06   [ 4368]   INFO    StartView.cpp (820)                                
[ 9768] 2021-11-17 18:13:06   [ 4368]   INFO    StartView.cpp (820)                                

@Ubi-Thrupney There are entries in the launcher_log.txt file as above. Every time I start the game. Thought maybe DataOverlay.cpp was the problem. I found out that in some Ubisoft games the solution was to disable the overlay in the Ubisoft Connect settings. I tried it this time. It had no effect. The game still doesn't work.