Creator v2 fails with Cannot read properties of null (reading 'key')

[JaneSjs]

Try a survey from the Lazy Loading for Content-Heavy Forms demo.
To reproduce the issue, load the following demo:

test-project-react.zip

• Collapse all elements by clicking Collapse All
• Try to drag and drop Page 1 and drop it after Page 3. The following exception is thrown.

react-dom.production.min.js:79 Uncaught TypeError: Cannot read properties of null (reading 'key')
    at __webpack_modules__../src/element.tsx.SurveyRowElement.renderElement (element.tsx:78:32)
    at __webpack_modules__../src/reactquestion_element.tsx.SurveyElementBase.render (reactquestion_element.tsx:65:20)
    at Af (react-dom.production.min.js:133:101)
    at ri (react-dom.production.min.js:132:399)
    at Qk (react-dom.production.min.js:252:71)
    at Ri (react-dom.production.min.js:195:185)
    at Ok (react-dom.production.min.js:195:116)
    at Nd (react-dom.production.min.js:194:492)
    at Li (react-dom.production.min.js:189:179)
    at db (react-dom.production.min.js:79:182)

[tsv2013]

This issue is not related to large JSON
The thing is that

ReactElementFactory.Instance.isElementRegistered('boolean')

returns false