Windows Users - If you update your Claude Desktop app and try to switch to Fable 5, you might get an "infinite load" bug, where it just sits there with your project history showing a "skeleton" loader (see mockup in image 1)
Right-click on your Taskbar, and open "Task Manager".
Once it opens:
- Click Processes
- Type "Claude" in the search bar.
- Rightclick on the "Claude" task, and choose "End Task".
Then restart your Claude Desktop app and you should be good to go.