[SOLVED] Volto Block is just Empty with a Forbidden Icon

Apologies in advance. It seems I can't paste links or images :frowning:

I'm following the Mastering Plone 6 training. I'm to the part where I am supposed to update the News page to display the News Items that I created. It says to go to the Block tab. However, in my frontend, when I go to "Block" I don't see any fields, just a grey forbidden icon (circle with a slash through it).

The console stack trace I get is this, but I'm not sure if its a red herring or not:

Warning: componentWillReceiveProps has been renamed, and is not recommended for use. See https://reactjs.org/link/unsafe-component-lifecycles for details.

* Move data fetching code or side effects to componentDidUpdate.
* If you're updating state whenever props change, refactor your code to use memoization techniques or move it to static getDerivedStateFromProps. Learn more at: https://reactjs.org/link/derived-state
* Rename componentWillReceiveProps to UNSAFE_componentWillReceiveProps to suppress this warning in non-strict mode. In React 18.x, only the UNSAFE_ name will work. To rename all deprecated lifecycles to their new names, you can run `npx react-codemod rename-unsafe-lifecycles` in your project source folder.

Please update the following components: DateInput

The "Block" sidebar tab is usually empty when the block edit component doesn't fill it in. I'm not familiar with the Mastering Plone training, so I don't know the step you're doing now. It may be "normal", for the step you're doing. You can test Volto on demo.plone.org, to check how block editing is supposed to behave.

Thanks again! Yes, what I was doing was clicking the title block and selecting the Block tab. Even in the demo site I got the forbidden icon.

Instead I needed to create another block below and then the Block tab was populated. Many thanks!