HELP ME!!! The game won't launch!

After the Steam and Space Engineers update that arrived on November 1, 2025, the game won't launch. When loading the game, it reaches 89% and a "Space Engineers has crashed" window pops up. It's always at the same loading percentage. While the game would launch intermittently after November 1, 2025, jumping over the 89% loading barrier, after the update that arrived on November 24, 2025, the game won't launch at all. It can't get past 89%. I searched the forums for a solution, but nothing helped. I deleted all the mods, but it still won't launch. I tried running it from various previously saved backups, but it still won't launch. I updated the video card driver and installed all Windows updates. Windows Defender has made the appropriate exceptions for Space Engineers. There are no other antivirus programs running. There are no boot scripts. The line there is empty. My system:

Processor: AMD Ryzen 9 7940HS with Radeon 780M Graphics (4.00 GHz)

RAM: 64.0 GB

System type: Windows 11 64-bit operating system, x64 processor

What could be wrong? How do I roll back Steam updates and Space Engineers updates? How do I launch the game?