Describe the bug
I'm trying to upgrade two frontend formio packages from @formio/react 5.3.0 + formiojs 4.17.1 to @formio/react 6.0.2 with @formio/js 5.2.0 (per compatibility matrix: React 18 + 6.0.x + 5.x core) and I'm running into runtime crashes when rendering multi-page wizard forms with nested form components:

Uncaught TypeError: Cannot read properties of undefined (reading 'hasExtraPages')
    at Webform.validationProcessor (NestedComponent.js:675:1)
    at Object.validationProcessorProcess (NestedComponent.js:699:1)
    at processOneSync (processOne.js:78:1)
    at eval (process.js:59:1)
    at eval (eachComponentData.js:23:1)
    at eval (eachComponent.js:32:1)
    at Array.forEach (<anonymous>)
    at eachComponent (eachComponent.js:23:1)
    at eachComponentData (eachComponentData.js:21:1)
    at processSync (process.js:58:1)
    at Webform.validateComponents (NestedComponent.js:729:1)
    at Webform.validate (NestedComponent.js:739:1)
    at Webform.onChange (Webform.js:1258:1)
    at eval (Component.js:353:1)
    at invokeFunc (lodash.js:10401:1)
    at trailingEdge (lodash.js:10450:1)
    at timerExpired (lodash.js:10438:1)

Version/Branch
@formio/react: 6.0.2
@formio/js: 5.2.0
React: 18.3.x
Next.js: 14 (app uses classic pages)

Dynamic form import example:

const DynamicForm: React.ComponentType<FormProps> = dynamic(
  () =>
    (import('@formio/react') as any).then((mod: any) => {
      return mod.Form;
    }),
  {
    ssr: false,
  }
);

Dynamic provider In _app.tsx:

<DynamicProvider baseUrl={FORMIO_URL} projectUrl={FORMIO_URL}> 
  ... 
</DynamicProvider>

To Reproduce
Steps to reproduce the behavior:

1. Create Next.js 14 project with React 18
2. Install @formio/react@6.0.2 and @formio/js@5.2.0
3. Dynamically import Form and FormioProvider components (ssr: false).
4. Render a Wizard form with nested form components (seems to work fine without nested form components). To create the form I'm currently using formio enterprise: Application: 8.1.0, Renderer: 4.15.0 but I'm experiencing the same issue with the new version: Application: 9.6.0, Renderer: 5.2.1

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots

Additional context
Add any other context about the problem here.