diff -u b/src/Form/JobItemForm.php b/src/Form/JobItemForm.php
--- b/src/Form/JobItemForm.php
+++ b/src/Form/JobItemForm.php
@@ -225,30 +225,30 @@
     $source_ui = $this->sourceManager->createUIInstance($item->getPlugin());
     $source_ui->reviewFormSubmit($form, $form_state, $item);
     // Invoke the submit method on the translator controller (if available).
-    if ($item->hasTranslator()) {
+    if ($item->getTranslator()){
       $translator_ui = $this->translatorManager->createUIInstance($item->getTranslator()->getPluginId());
       $translator_ui->reviewFormSubmit($form, $form_state, $item);
-
-      // Write changes back to item.
-      foreach ($form_state->getValues() as $key => $value) {
-        if (is_array($value) && isset($value['translation'])) {
-          // Update the translation, this will only update the translation in case
-          // it has changed. We have two different cases, the first is for nested
-          // texts.
-          if (is_array($value['translation'])) {
-            $data = array(
-              '#text' => $value['translation']['value'],
-              '#origin' => 'local',
-            );
-          } else {
-            $data = array(
-              '#text' => $value['translation'],
-              '#origin' => 'local',
-            );
-          }
-
-          $item->addTranslatedData($data, $key);
+    }
+    // Write changes back to item.
+    foreach ($form_state->getValues() as $key => $value) {
+      if (is_array($value) && isset($value['translation'])) {
+        // Update the translation, this will only update the translation in case
+        // it has changed. We have two different cases, the first is for nested
+        // texts.
+        if (is_array($value['translation'])) {
+          $data = array(
+            '#text' => $value['translation']['value'],
+            '#origin' => 'local',
+          );
         }
+        else {
+          $data = array(
+            '#text' => $value['translation'],
+            '#origin' => 'local',
+          );
+        }
+
+        $item->addTranslatedData($data, $key);
       }
     }
     // Check if the user clicked on 'Accept', 'Submit' or 'Reject'.
only in patch2:
unchanged:
--- a/src/Entity/JobItem.php
+++ b/src/Entity/JobItem.php
@@ -722,7 +722,7 @@ class JobItem extends ContentEntityBase implements JobItemInterface {
           break;
         }
       }
-      if ($finished) {
+      if ($finished && $this->getJob()->hasTranslator()) {
         // There are no unfinished elements left.
         if ($this->getJob()->getTranslator()->isAutoAccept()) {
           // If the job item is going to be auto-accepted, set to review without