Menus & Pages menu does not display in local-editor

[copcb]

Describe the bug
Menus & Pages menu does not display when using the local editor. Electron console shows an error
instrument.ts:273
"Invariant Violation: Minified React error #130; visit https://reactjs.org/docs/error-decoder.html?invariant=130&args[]=undefined&args[]= for the full message or use the non-minified dev environment for full errors and additional helpful warnings."

To Reproduce
Steps to reproduce the behaviour:

1. clone or create a local repo from www.croydongymnastics.org

2. start local editor

3. Click on Menus & Pages button

4. screen will show the stub of the menu but no content
   

5. See error in console:
   

Expected behaviour
Menus & Pages menu should show up. All other floating menu buttons work correctly

Screencasts

Desktop (please complete the following information):

• OS: Windows
• Version 10
• Node: v14.9.0
• corvid: 0.2.10-alpha.0

Additional context
I've tried various different methods to eliminate the problem. None have worked :
upgraded from node 12 to 14.9
create-corvid-app
create-corvid-app .. then npx corvid clone

source code
https://github.com/copcb/wix-open-editor-issue <-- copy of code

[anantakrishna]

I experience this as well.

As a workaround:

• Open preview in the local editor.
• Navigate to another page using the main menu in the preview mode.
• Return to edit mode.

After this the Menus & Pages button works again.

[copcb]

Thanks!
that works for me too - in fact I don't even have to navigate to a different page. Just preview and return to editor stops the error showing up.