Hello,

Platform PlayStation 5.
Game Assassin's Creed Valhalla

I discovered by accident a GBB Game Break Bug that broke the game and I lost 7 hours of gameplay and believe I was so bleeping angry with Ubisoft because as a programmer I would bet that the cause of the bug is code related.

What Happened:
The last but 2 missions in Norway you are accompanied by Sigurd and Basim and instead of going to do the mission I went to kill the Legendary Deer. But I didn't know they was going to follow me I thought they were going to stay in the longboat. So when I got to the Legendary Deer they started to attack the deer as well. (And this is where it all went Pete Tong) because when I fast traveled back to the settlement and went to get into the longboat to sail off to do the mission I noticed a problem. The Ai on the left side the longboat was broken (I have recordings and screen captures) I will add them tomorrow as it is nearly 01:00 here. Likening said the entire left side of the crew was broken, no movement I tried fast travel no good, I tried fast travel to anchor and then jumped back onto the longboat no change. When I got to the mission and run a RAID only half of the crew got out of the longboat (again I have screen capture and recordings of this) It didn't matter what I done the game was broken.

How did I resolve it:
Thr only one option to take restart from a save I tried several saves but they all had the same problem. I had to go back 7hrs of gameplay and do all the missions and ares of collectibles and yeah I wqs really p****d with Ubisoft. I had not other option I had to go back to a saved area that wasn't corrupt and boy wqs I swearing my head off at the Devs and Ubisoft.

Summary:
So if you leave the Legendary Deer until thrnlastv2 missions and Sigurd and Basim join you this will break the game if they help you kill the Legendary Deer. It completely breaks the game so my advise. Don't do it. I discovered this by accident... it breaks the game you're literally left with only half a crew and you have to load to a point before you started the last 2 missions.

So my advise don't do it.