What would cause a game to not launch after os update?

The game "Escape the Backrooms" https://store.steampowered.com/app/1943950/Escape_the_Backrooms/ will not launch after the latest ublue update. Previous deployment works but not the current one. I pinned the deployment where it does work.

I have tried Verifying game integerity, rebooting, using GE-Proton but same error
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Steam
Explore the seemingly infinite expanse of eerily familiar levels in the backrooms based on the popular creepypasta lore. Each level features different ways to escape with danger along the way.Realistic graphics, minimal user interfaces, and dreary ambience will ensure an immersive experience.Explore the backrooms with a team of up to 4 players....
Price
$9.99
Recommendations
35164
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