Thank you for sharing so much detail, @sakarin35!

The v0 team are aware of this issue with preview and are actively working on improving it.

In the meantime, you should still be able to see the preview deployment on Vercel.

The issue is that I can't see the code or even download it, not just the preview. Any advice on how to check my work?

Have you tried downloading the zip? Can you talk me through what you've done?

At first, the preview worked fine. It only stopped working after I started adding packages or APIs, but since I could still see the code, it wasn't a big issue.

However, ever since the code view changed to the VS Code style, I haven't been able to check the code at all lately. Because of this, I've been downloading the entire project as a zip file as a workaround, but now that isn't working either.

As you can see in the image, the download button is disabled. When I hover over it, it says 'waiting for sandbox to start.' Is there any other way to check or access my code in this state?"