Fix Notice: undefined index ratio in Blazy when try to adding images from Gallery media type in WYSIWYG

Here is the setup:
1- Install varbase.
3- Add basic page.
2- Add a gallery from WYSIWYG.
4- Save.
3- Notice: Undefined index: ratio in Drupal\blazy\BlazyFormatter->preBuildElements() (line 113 of modules/contrib/blazy/src/BlazyFormatter.php).
Drupal\blazy\BlazyFormatter->preBuildElements(Array, Object, Array) (Line: 32)
Drupal\slick\SlickFormatter->preBuildElements(Array, Object, Array) (Line: 25)
Drupal\slick\Plugin\Field\FieldFormatter\SlickMediaFormatter->commonViewElements(Object, 'en', Array) (Line: 45)
Drupal\slick\Plugin\Field\FieldFormatter\SlickMediaFormatter->viewElements(Object, 'en') (Line: 89)
Drupal\Core\Field\FormatterBase->view(Object, 'en') (Line: 76)
Drupal\Core\Field\Plugin\Field\FieldFormatter\EntityReferenceFormatterBase->view(Object, NULL) (Line: 263)
Drupal\Core\Entity\Entity\EntityViewDisplay->buildMultiple(Array) (Line: 267)
Drupal\layout_builder\Entity\LayoutBuilderEntityViewDisplay->buildMultiple(Array) (Line: 351)
Drupal\Core\Entity\EntityViewBuilder->buildComponents(Array, Array, Array, 'full') (Line: 293)
Drupal\Core\Entity\EntityViewBuilder->buildMultiple(Array) (Line: 250)
Drupal\Core\Entity\EntityViewBuilder->build(Array)
call_user_func_array(Array, Array) (Line: 100)
Drupal\Core\Render\Renderer->doTrustedCallback(Array, Array, 'Render #pre_render callbacks must be methods of a class that implements \Drupal\Core\Security\TrustedCallbackInterface or be an anonymous function. The callback was %s. Support for this callback implementation is deprecated in 8.8.0 and will be removed in Drupal 9.0.0. See https://www.drupal.org/node/2966725', 'silenced_deprecation', 'Drupal\Core\Render\Element\RenderCallbackInterface') (Line: 781)
Drupal\Core\Render\Renderer->doCallback('#pre_render', Array, Array) (Line: 372)
Drupal\Core\Render\Renderer->doRender(Array) (Line: 444)
Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 200)
Drupal\Core\Render\Renderer->render(Array) (Line: 212)
Drupal\entity_embed\Plugin\Filter\EntityEmbedFilter->Drupal\entity_embed\Plugin\Filter\{closure}() (Line: 573)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 213)
Drupal\entity_embed\Plugin\Filter\EntityEmbedFilter->process('
', 'en') (Line: 118)
Drupal\filter\Element\ProcessedText::preRenderText(Array)
call_user_func_array(Array, Array) (Line: 100)
Drupal\Core\Render\Renderer->doTrustedCallback(Array, Array, 'Render #pre_render callbacks must be methods of a class that implements \Drupal\Core\Security\TrustedCallbackInterface or be an anonymous function. The callback was %s. Support for this callback implementation is deprecated in 8.8.0 and will be removed in Drupal 9.0.0. See https://www.drupal.org/node/2966725', 'silenced_deprecation', 'Drupal\Core\Render\Element\RenderCallbackInterface') (Line: 781)
Drupal\Core\Render\Renderer->doCallback('#pre_render', Array, Array) (Line: 372)
Drupal\Core\Render\Renderer->doRender(Array, 1) (Line: 200)
Drupal\Core\Render\Renderer->render(Array, 1) (Line: 156)
Drupal\Core\Render\Renderer->Drupal\Core\Render\{closure}() (Line: 573)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 157)
Drupal\Core\Render\Renderer->renderPlain(Array) (Line: 62)
Drupal\text\TextProcessed->getValue() (Line: 140)
Drupal\Core\Field\FieldItemBase->__get('processed') (Line: 139)
node_tokens('node', Array, Array, Array, Object)
call_user_func_array('node_tokens', Array) (Line: 403)
Drupal\Core\Extension\ModuleHandler->invokeAll('tokens', Array) (Line: 304)
Drupal\Core\Utility\Token->generate('node', Array, Array, Array, Object) (Line: 196)
Drupal\Core\Utility\Token->replace('[node:summary]', Array, Array, Object) (Line: 66)
Drupal\metatag\MetatagToken->replace('[node:summary]', Array, Array) (Line: 553)
Drupal\metatag\MetatagManager->generateRawElements(Array, Object) (Line: 475)
Drupal\metatag\MetatagManager->generateElements(Array, Object) (Line: 496)
metatag_get_tags_from_route() (Line: 265)
_metatag_remove_duplicate_entity_tags(Array) (Line: 234)
metatag_entity_view_alter(Array, Object, Object) (Line: 539)
Drupal\Core\Extension\ModuleHandler->alter('node_view', Array, Object, Object) (Line: 316)
Drupal\Core\Entity\EntityViewBuilder->buildMultiple(Array) (Line: 250)
Drupal\Core\Entity\EntityViewBuilder->build(Array)
call_user_func_array(Array, Array) (Line: 100)
Drupal\Core\Render\Renderer->doTrustedCallback(Array, Array, 'Render #pre_render callbacks must be methods of a class that implements \Drupal\Core\Security\TrustedCallbackInterface or be an anonymous function. The callback was %s. Support for this callback implementation is deprecated in 8.8.0 and will be removed in Drupal 9.0.0. See https://www.drupal.org/node/2966725', 'silenced_deprecation', 'Drupal\Core\Render\Element\RenderCallbackInterface') (Line: 781)
Drupal\Core\Render\Renderer->doCallback('#pre_render', Array, Array) (Line: 372)
Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 200)
Drupal\Core\Render\Renderer->render(Array, ) (Line: 226)
Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 573)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 227)
Drupal\Core\Render\MainContent\HtmlRenderer->prepare(Array, Object, Object) (Line: 117)
Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse(Array, Object, Object) (Line: 90)
Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray(Object, 'kernel.view', Object)
call_user_func(Array, Object, 'kernel.view', Object) (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch('kernel.view', Object) (Line: 156)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 68)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 57)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\KernelPreHandle->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: 47)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 52)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 708)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)