How to Fix Librarian: Tidy Up the Arcane Library! Crashes

**Librarian: Tidy Up the Arcane Library!** is crashing or closing unexpectedly. Here's how to fix it: 1. Verify game files via your launcher (Steam → Properties → Installed Files → Verify). 2. Update your GPU drivers to the latest version from NVIDIA/AMD. 3. Run the game as Administrator.