JSON.stringify(this.editor.getComponents()) Error

Same error here ... do you have a solution?

[EDIT] Downgrading seems to be the only solution for now

Same problem here, if I preprocess the components and remove that attribute (__symbol) before load the Editor the template works fine.

Is the a way @artf to disable the symbols for now?

Yeah unfortunately the previous version of grapesjs had a bug that created symbols involuntary. In the current version, the bug is fixed and symbols are disabled, but unfortunately, this still happens if you try to load a component with a saved symbol reference (created by the bug). I'll add a patch for this issue in the next release, for now, I'd follow Josè's advice and remove all __symbol references before loading the editor.

Thanks for reporting this, @mmotov.

The error **TypeError: e[M].getId is not a function`. ** occurs when ProseMirror attempts to access properties before the component lifecycle is fully initialized. This is a common race condition in GrapesJS.

Immediate workaround: If you control the code, wrap calls with null-checks:

if (component && typeof component.getComponents === 'function') {
  // your code
}

Root cause analysis: The ProseMirror doesn't validate state before invoking getComponents(). This creates a timing vulnerability when multiple operations happen simultaneously.

Next steps:

1. Try the null-guard workaround above
2. Update to the latest GrapesJS — many race conditions have been fixed
3. If this persists, share your exact reproduction steps with the team
4. Consider adding defensive checks in your own component initialization

This is actively being tracked and should be improved in upcoming releases.