Components disappearing/not being rendered at cloning, moving or adding

Sorry but demo-mjml is a plugin and not related directly to the core. As I see no issues with the default renderer of components that might be related to the mjml renderer of components and I have no reason to keep this issue open. Despite that, if anybody is able to identify the issue and it's some how related to the core, I'm open to fix that.

Thanks for reporting this, @gustavohleal.

Great question about Components disappearing/not being rendered at cloning, moving or adding. The recommended approach with ProseMirror is to use the event-driven API.

Start here:

1. Check the GrapesJS documentation for your specific module
2. Look for the on() event listener method
3. Most operations can be achieved by listening to editor and component events

Common patterns:

// Listen for changes
editor.on('change', () => console.log('something changed'));

// Component lifecycle
editor.on('component:mount', (c) => console.log('component ready', c));
editor.on('component:update', (c) => console.log('component updated', c));

If you're still stuck:

• Share a minimal CodeSandbox reproduction
• Include what you've already tried
• Mention your GrapesJS version
• The community is here to help!