Bug description

If the user opens a corrupted file (see #8008), Audacity does not show an error or open the project. The app is not operable and can be closed only via the task manager.

Steps to reproduce

1. Go to "Open from cloud" dialog and start downloading a corrupted project
2. Wait for the download to finish.

Expected behavior

• Audacity should display an error message, or recover the project
• Audacity should not hang on exit after the error occurred.

Actual behavior

• No errors are displayed
• Audacity can't be closed

Audacity Version

Audacity 3.7.x

Operating system

macOS

Additional context

No response