I've run into an issue that during the fight scene with The Builder's summoning the game crashes and either locks the video screen or crashes fully back into the Xbox OS. This is repeatable (unavoidable actually).
During game play of first round after shield has turned red and attackers are getting through. The 'boss' of that and I are in a close quarters melee after he 'teleports' nearby and the game will literally lock-up. The Xbox OS continues to run and I can jump out and 'quit' the game there. However, this is the 3rd time in a row that I've restarted from the 'battle re-launch' save after trying to just reload the auto-save multiple times and the same thing happens. I've tried mixing up battle techniques (dodge and crossbow vs. in tight and axe fight in a phone-booth vs. 'stick and move') doesn't affect result. Don't have a specific timing in seconds after battle begins, but I know it isn't 'exact same' each time, but it does 'feel' close enough that maybe I've reached a particular 'plateau' in the battle mechanics and it pukes going to a cut-scene maybe? Suggestions welcome.

Guiwhiz

Playing environment:
Xbox 1x using HDR on a LG OLED 4k
Xbox 1gbps LAN interface to switch
Assassin's Creed Valhalla Steelbox edition
Game library saved on dedicated WD 12TB RAID 0 array via the USB 3.0 interface - no issues with any other games or apps on array

Hi
I’m playing assassins creed vallhalla on Xbox one, 
I’m trying to get to the book of knowledge in lunden, in crepelgate fort, when I go to move the bookcase, it does not work, it says move, player goes to hold on to bookcase thing but it won’t move, have tried clearing cache, reloading saves etc but this does not work.

I am so tired of encountering bugs. First, this cow in Asgard won't move at all. I moved the big rock out of the way, smashed the gates, nothing. It just stands there, all bugged. Now, I'm at 29/30 Ymir Stones and there is a yellow barrier preventing me from getting the last stone, in the arena. What the hell? I've been searching for them for hours and now I can't continue. How do I fix the cow problem and what do I do to unlock the barrier?