Cannot create references to/from string offsets

It seems like this error has popped up again for me on Drupal 10.2.6:

The website encountered an unexpected error. Try again later.

Error: Cannot create references to/from string offsets in Drupal\Component\Utility\NestedArray::setValue() (line 155 of core/lib/Drupal/Component/Utility/NestedArray.php).
Drupal\Core\Form\FormBuilder->handleInputElement('node_page_edit_form', Array, Object) (Line: 1006)
Drupal\Core\Form\FormBuilder->doBuildForm('node_page_edit_form', Array, Object) (Line: 1076)
Drupal\Core\Form\FormBuilder->doBuildForm('node_page_edit_form', Array, Object) (Line: 1076)
Drupal\Core\Form\FormBuilder->doBuildForm('node_page_edit_form', Array, Object) (Line: 1076)
Drupal\Core\Form\FormBuilder->doBuildForm('node_page_edit_form', Array, Object) (Line: 1076)
Drupal\Core\Form\FormBuilder->doBuildForm('node_page_edit_form', Array, Object) (Line: 579)
Drupal\Core\Form\FormBuilder->processForm('node_page_edit_form', Array, Object) (Line: 325)
Drupal\Core\Form\FormBuilder->buildForm(Object, Object) (Line: 73)
Drupal\Core\Controller\FormController->getContentResult(Object, Object)
call_user_func_array(Array, Array) (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 627)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 121)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 181)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 76)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 28)
Drupal\Core\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 36)
Drupal\Core\StackMiddleware\AjaxPageState->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object, 1, 1) (Line: 704)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)

Not sure why the other comment interface didn't give me the option of changing status/version. It does seem to be related to CKEditor module. I'm getting this error trying to save/create a node with a particular rich text formatter. I'll work on recreating this error in a clean d10 install.

I think this issue is actually related to paragraphs. It only happens when I have a paragraph open for editing.