Cannot add blocks with Vizy fields since 3.9.x

[scandella]

Bug Description

Since upgrading to Neo 3.9.x I can no longer create blocks with Vizy fields in it.
JS error appears when pushing the add button.
axios.js?v=1695756066:2 POST http://localhost:8888/pang/dev/web/index.php?p=admin%2Factions%2Fneo%2Finput%2Frender-blocks&v=1695756830224 500 (Internal Server Error)
Input.js:1149 Uncaught (in promise) o {message: 'Request failed with status code 500', name: 'AxiosError', code: 'ERR_BAD_RESPONSE', config: {…}, request: XMLHttpRequest, …}

Downgrading to 3.8.6 solved the issue.

Steps to reproduce

1. Upgrade to Neo 3.9.x
2. Create a Neo field
3. Add a Vizy field in it
4. In a section, try to add an entry to this Neo Field

Expected behaviour

No response

Neo version

3.9.2

Craft CMS version

Craft Pro 4.5.5

What is the affected Neo field's propagation method?

No response

Does this issue involve templating, and if so, is eager-loading used?

This is not a templating issue

[ttempleton]

Fixed for the next release - see verbb/vizy#260 (comment) for an explanation of what caused this.

[ttempleton]

Neo 3.9.3 has now been released.