diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9bf72d67..8de636e2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,11 @@ before starting to add changes. Use example [placed in the end of the page](#exa
 
 ## [Unreleased]
 
+- [#73](https://github.com/OS2Forms/os2forms/pull/73a)
+  Fix issue with nested elements in webform inherit
+- [#72](https://github.com/OS2Forms/os2forms/pull/72)
+  Fix certificate testing, also testing for RSA/PEM certs as well as PKCS12
+
 ## [3.13.2] 2023-10-19
 
 - Fixing CPR fetch pattern
diff --git a/composer.json b/composer.json
index 50d3d8f6..ed85472b 100644
--- a/composer.json
+++ b/composer.json
@@ -82,8 +82,9 @@
         "tecnickcom/tcpdf": "~6",
         "webmozart/path-util": "^2.3",
         "wsdltophp/packagebase": "^5.0",
-        "zaporylie/composer-drupal-optimizations": "^1.2"
-    },
+        "zaporylie/composer-drupal-optimizations": "^1.2",
+				"ext-openssl": "*"
+		},
     "require-dev": {
         "dealerdirect/phpcodesniffer-composer-installer": "^0.7.1",
         "drupal/coder": "^8.3",
@@ -146,4 +147,4 @@
             "zaporylie/composer-drupal-optimizations": true
         }
     }
-}
+}
\ No newline at end of file
diff --git a/modules/os2forms_digital_post/src/Form/SettingsForm.php b/modules/os2forms_digital_post/src/Form/SettingsForm.php
index 0d968590..fc869112 100644
--- a/modules/os2forms_digital_post/src/Form/SettingsForm.php
+++ b/modules/os2forms_digital_post/src/Form/SettingsForm.php
@@ -258,8 +258,27 @@ public function submitForm(array &$form, FormStateInterface $formState): void {
   private function testCertificate(): void {
     try {
       $certificateLocator = $this->certificateLocatorHelper->getCertificateLocator();
-      $certificateLocator->getCertificates();
-      $this->messenger()->addStatus($this->t('Certificate succesfully tested'));
+      $certificatePath = $this->settings->getCertificate()[CertificateLocatorHelper::LOCATOR_TYPE_FILE_SYSTEM]['path'];
+
+      // Check if the certificate has the pkcs12 extension or not.
+      if (pathinfo($certificatePath, PATHINFO_EXTENSION) == 'pkcs12') {
+        // Check the certificate if it is a valid pkcs12 certificate.
+        $certificateLocator->getCertificates();
+      }
+      else {
+        // Get contents of certificate.
+        $certificateKeyFile = $certificateLocator->getCertificate();
+        // Create an array for checking the key with the certificate.
+        $keyCheckData = [$certificateKeyFile, $certificateLocator->getPassphrase()];
+        // Check the private key against the certificate.
+        $result = openssl_x509_check_private_key($certificateKeyFile, $keyCheckData);
+        // If the result is not "1", throw an exception.
+        if ($result != 1) {
+          throw new \ErrorException('PEM certificate is not valid.');
+        }
+      }
+
+      $this->messenger()->addStatus($this->t('Certificate successfully tested'));
     }
     catch (\Throwable $throwable) {
       $message = $this->t('Error testing certificate: %message', ['%message' => $throwable->getMessage()]);
diff --git a/modules/os2forms_forloeb/src/Plugin/EngineTasks/MaestroWebformInheritTask.php b/modules/os2forms_forloeb/src/Plugin/EngineTasks/MaestroWebformInheritTask.php
index b04137ce..8bd0040e 100644
--- a/modules/os2forms_forloeb/src/Plugin/EngineTasks/MaestroWebformInheritTask.php
+++ b/modules/os2forms_forloeb/src/Plugin/EngineTasks/MaestroWebformInheritTask.php
@@ -2,9 +2,11 @@
 
 namespace Drupal\os2forms_forloeb\Plugin\EngineTasks;
 
+use Drupal\Component\Utility\NestedArray;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\maestro\Engine\MaestroEngine;
 use Drupal\maestro_webform\Plugin\EngineTasks\MaestroWebformTask;
+use Drupal\webform\Entity\Webform;
 use Drupal\webform\Entity\WebformSubmission;
 use Drupal\webform\Utility\WebformArrayHelper;
 
@@ -152,9 +154,18 @@ public static function webformSubmissionFormAlter(array &$form, FormStateInterfa
           if ('webform_submission' === ($entityIdentifier['entity_type'] ?? NULL)) {
             $submission = WebformSubmission::load($entityIdentifier['entity_id']);
             $data = $submission->getData();
-            foreach ($data as $key => $value) {
-              if (isset($form['elements'][$key])) {
-                $form['elements'][$key]['#default_value'] = $value;
+
+            // The target element may be hidden inside sections or field groups
+            // on the target form. Therefore, we need to load that form and get
+            // element information to properly set default element values nested
+            // inside the form.
+            if ($targetWebform = Webform::load($form['#webform_id'] ?? NULL)) {
+              foreach ($data as $key => $value) {
+                if ($targetElement = $targetWebform->getElement($key)) {
+                  if ($element = &NestedArray::getValue($form['elements'], $targetElement['#webform_parents'])) {
+                    $element['#default_value'] = $value;
+                  }
+                }
               }
             }
           }