You are the only person reporting this issue so far. Try to uninstall and reinstall the game maybe? on which firmware version is your Quest 2?
I am on OS version 28.0.0.230.359.286257763.
I tried a couple re-installs and initially it didn't help. However, after launching another game in my library and then coming back to Deisim, it was able to load. Not sure why it worked out that way, but I'm just glad it was able to launch.
Thanks for your help Myron. Loving the game and looking forward to future updates.