issue: [zod/v4] All error messages return "Invalid Input" instead of descriptive messages

[tunctn]

Version Number

5.1.0

Codesandbox/Expo snack

https://codesandbox.io/p/sandbox/long-flower-y4lkvn

Steps to reproduce

1. Open the Sandbox
2. Submit the zod/v3 and zod/v4 forms with any invalid values. I set some defaults for you.
3. Check the error messages below the input fields. You can check the console.log for more info.

Expected behaviour

I would expect the get the same type of descriptive error messages as zod/v3. However zod/v4 only returns "Invalid Input" for any given error type.

What browsers are you seeing the problem on?

Chrome

Screenshot

Code of Conduct

• I agree to follow this project's Code of Conduct

[github-actions]

🎉 This issue has been resolved in version 5.1.1 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀