diff --git a/.github/workflows/pr.yaml b/.github/workflows/pr.yaml
index a7a617e..9eadec0 100644
--- a/.github/workflows/pr.yaml
+++ b/.github/workflows/pr.yaml
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-versions: [ '7.4', '8.0', '8.1' ]
+        php-versions: [ '8.1' ]
         dependency-version: [ prefer-lowest, prefer-stable ]
     steps:
       - uses: actions/checkout@master
@@ -55,7 +55,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-versions: [ '7.4', '8.0', '8.1' ]
+        php-versions: [ '8.1' ]
         dependency-version: [ prefer-lowest, prefer-stable ]
     steps:
       - uses: actions/checkout@master
@@ -88,7 +88,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-versions: [ '7.4', '8.0', '8.1' ]
+        php-versions: [ '8.1' ]
         dependency-version: [ prefer-lowest, prefer-stable ]
     steps:
       - uses: actions/checkout@master
diff --git a/.php-version b/.php-version
new file mode 100644
index 0000000..b8eb026
--- /dev/null
+++ b/.php-version
@@ -0,0 +1 @@
+8.1
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d7012ed..4024d62 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,10 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+### Fixed
+
+- Handled even more errors in form preview
+
 ## [1.1.1]
 
 ### Fixed
diff --git a/src/Controller/WebformController.php b/src/Controller/WebformController.php
index 98bc53f..a6c1662 100644
--- a/src/Controller/WebformController.php
+++ b/src/Controller/WebformController.php
@@ -7,6 +7,7 @@
 use Drupal\Core\Http\RequestStack;
 use Drupal\Core\Link;
 use Drupal\Core\Render\Markup;
+use Drupal\Core\Render\RendererInterface;
 use Drupal\Core\Routing\TrustedRedirectResponse;
 use Drupal\Core\Serialization\Yaml;
 use Drupal\Core\Url;
@@ -24,34 +25,15 @@ final class WebformController extends ControllerBase {
   private const FILTER_WEBFORMS_IMPORTED = 'imported';
   private const FILTER_WEBFORMS_NOT_IMPORTED = 'not imported';
 
-  /**
-   * The request stack.
-   *
-   * @var \Drupal\Core\Http\RequestStack
-   */
-  private RequestStack $requestStack;
-
-  /**
-   * The import helper.
-   *
-   * @var \Drupal\os2forms_sync\Helper\ImportHelper
-   */
-  private ImportHelper $importHelper;
-
-  /**
-   * The webform helper.
-   *
-   * @var \Drupal\os2forms_sync\Helper\WebformHelper
-   */
-  private WebformHelper $webformHelper;
-
   /**
    * Constructor.
    */
-  public function __construct(RequestStack $requestStack, ImportHelper $importHelper, WebformHelper $webformHelper) {
-    $this->requestStack = $requestStack;
-    $this->importHelper = $importHelper;
-    $this->webformHelper = $webformHelper;
+  public function __construct(
+    readonly private RequestStack $requestStack,
+    readonly private ImportHelper $importHelper,
+    readonly private WebformHelper $webformHelper,
+    readonly private RendererInterface $renderer
+  ) {
   }
 
   /**
@@ -61,7 +43,8 @@ public static function create(ContainerInterface $container): self {
     return new static(
       $container->get('request_stack'),
       $container->get(ImportHelper::class),
-      $container->get(WebformHelper::class)
+      $container->get(WebformHelper::class),
+      $container->get('renderer')
     );
   }
 
@@ -141,6 +124,9 @@ public function index(): array {
         $attributes = $webform->attributes;
         try {
           $form = $this->webformHelper->getSubmissionForm($attributes['elements']);
+          // Make sure that the form cannot be submitted (hopefully).
+          $form['#attributes']['onsubmit'] = 'return false';
+          $renderedForm = $this->renderer->renderPlain($form);
         }
         catch (\Throwable $t) {
           $form = [
@@ -151,9 +137,8 @@ public function index(): array {
               ],
             ],
           ];
+          $renderedForm = $this->renderer->renderPlain($form);
         }
-        // Make sure that the form cannot be submitted (hopefully).
-        $form['#attributes']['onsubmit'] = 'return false';
 
         $sourceUrl = $webform->sourceUrl;
         $importedWebform = $importedWebforms[$sourceUrl] ?? NULL;
@@ -178,7 +163,9 @@ public function index(): array {
           'form_display' => [
             '#type' => 'details',
             '#title' => $this->t('Form display'),
-            'form' => $form,
+            'form' => [
+              '#markup' => $renderedForm,
+            ],
           ],
 
           'elements' => [