After launching the game, two intro splash screens are shown, followed by a black screen. The game does not crash and shows no error message, but the process stays alive and keeps the CPU/GPU under heavy load (fans at 100%). It hangs indefinitely, stuck in a loop rather than an OS-level freeze. Reproduces consistently across multiple relaunches. Game file integrity was verified via Steam ("Verify integrity of game files") — all files passed, yet the issue persists.
Build: SimRail buildid 22821467, Unity Engine 2023.1.8f1 (ab88ac34d80c)
System: NVIDIA RTX 3060 (driver 32.0.16.1074), Direct3D 11.0, Windows 11 Pro
Key log excerpts:
[15:38:52]: Initialize engine version: 2023.1.8f1 (ab88ac34d80c)
[15:38:52]: Direct3D:
[15:38:52]: Version: Direct3D 11.0 [level 11.1]
[15:38:52]: Renderer: NVIDIA GeForce RTX 3060 (ID=0x2504)
[15:38:52]: Driver: 32.0.16.1074
[15:38:53]: Loading bundle shaders.unity3d
[15:38:53]: Unknown error occurred while loading 'archive:/CAB-455f44dd3cf19640cc3b6a5a005be4bd/CAB-455f44dd3cf19640cc3b6a5a005be4bd'.
[15:38:53]: Unknown error occurred while loading 'archive:/CAB-17fea419f36b00a9a80d0ac52877012d/CAB-17fea419f36b00a9a80d0ac52877012d.sharedAssets'.
[15:38:53]: Unknown error occurred while loading 'archive:/CAB-6eda65033d4c1f0c2741a460400e3106/CAB-6eda65033d4c1f0c2741a460400e3106'.
[15:38:53]: Unknown error occurred while loading 'archive:/CAB-a044b787b0d75e1f854877102b05a9fd/CAB-a044b787b0d75e1f854877102b05a9fd'.
[15:40:48]: The AssetBundle 'shaders.unity3d' can't be loaded because it was not built with the right version or build target.
[15:40:48]: Loading bundle shaders.unity3d
[15:40:48]: Unknown error occurred while loading 'archive:/CAB-455f44dd3cf19640cc3b6a5a005be4bd/CAB-455f44dd3cf19640cc3b6a5a005be4bd'.
Scale: over a single ~2m40s hang session, the error repeated 386,524 times, growing the log to 90+ MB.
