Mac Stardew Valley crashes when starting a new farm on macOS Tahoe 26.2 (M4 Pro, Apple Silicon)

[sinny13]

macOS version: macOS Tahoe 26.2
Hardware: Apple Silicon – M4 Pro, 24 GB RAM
Platform: Steam (also tested launching the executable directly, outside Steam)
Mods: None (vanilla game)

Issue:
- Stardew Valley launches successfully
- Crashes immediately when starting a new farm (before first save completes)
- No save folder is created

What I tested:
- Clean reinstall via Steam
- Quit Steam completely and launched the game directly via:
Stardew Valley.app/Contents/MacOS/StardewValley
- Manually created ~/Library/Application Support/StardewValley
- Adjusted folder permissions
- Attempted to remove macOS quarantine flags
- Granted Steam Full Disk Access

Result:
- The crash still occurs even when launching the executable directly with Steam not running
- This suggests the issue is not Steam-related or a permissions issue, but a macOS compatibility/runtime problem

Additional notes:
- Contents/MacOS contains .NET / MonoGame runtime files (System.*, Microsoft.*, MonoGame.*)
- The game crashes specifically when initializing a new farm / first save
- The save directory is never created