To help you get back to the hunt, are you seeing a (like a Fatal D3D Error) or is it a silent crash to the desktop?
Delete dinput8.dll from the game folder to test if mods are the cause. Monster Hunter Rise Sunbreak Startup Random Cra...
The most common culprit; old versions of this script hook break after game updates. To help you get back to the hunt,
Use Steam’s "Verify integrity of game files" to replace missing or corrupt assets. Monster Hunter Rise Sunbreak Startup Random Cra...
💡 While Sunbreak is a stellar expansion, the startup crash is a "technical tax" usually paid by those using mods. For vanilla players, a file verification or driver update almost always solves it.