diff --git a/app/Models/Concerns/Nested.php b/app/Models/Concerns/Nested.php
index 5e15d41ec9..d1e89980d9 100644
--- a/app/Models/Concerns/Nested.php
+++ b/app/Models/Concerns/Nested.php
@@ -8,6 +8,7 @@
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Http\Client\RequestException;
 use Illuminate\Support\Arr;
 use Kalnoy\Nestedset\AncestorsRelation;
 use Kalnoy\Nestedset\Collection;
@@ -1231,7 +1232,12 @@ protected function dirtyBounds()
     protected function assertNotDescendant(self $node)
     {
         if ($node == $this || $node->isDescendantOf($this)) {
-            throw new LogicException('Node must not be a descendant.');
+            $field = $node->getParentIdName();
+            $error = \Illuminate\Validation\ValidationException::withMessages([
+                $field => [__('crud.errors.node_must_not_be_a_descendant')]
+            ]);
+            throw $error;
+            //throw new LogicException('Node must not be a descendant.');
         }
 
         return $this;
@@ -1245,7 +1251,11 @@ protected function assertNotDescendant(self $node)
     protected function assertNodeExists(self $node)
     {
         if (! $node->getLft() || ! $node->getRgt()) {
-            throw new LogicException('Node must exists.');
+            $field = $node->getParentIdName();
+            $error = \Illuminate\Validation\ValidationException::withMessages([
+                $field => [__('crud.errors.invalid_node')]
+            ]);
+            throw $error;
         }
 
         return $this;
diff --git a/app/Services/EntityService.php b/app/Services/EntityService.php
index 9cac08f2dc..3d7a1dd209 100644
--- a/app/Services/EntityService.php
+++ b/app/Services/EntityService.php
@@ -685,6 +685,12 @@ public function makeNewMentionEntity(MiscModel $model, string $name)
         $model->name = $name;
         $model->is_private = $defaultPrivate;
         $model->campaign_id = $campaign->id;
+
+        // If the modal is a tree, it needs to be placed in its own bounds
+        if (method_exists($model, 'makeRoot')) {
+            $model->recalculateTreeBounds();
+        }
+
         $model->saveQuietly();
         $model->createEntity();
         if (!$model->entity->isTag()) {
diff --git a/lang/en/crud.php b/lang/en/crud.php
index dc4dd1cc22..04e01252d4 100644
--- a/lang/en/crud.php
+++ b/lang/en/crud.php
@@ -115,9 +115,10 @@
     'errors'                    => [
         'boosted'                       => 'This feature is only available to boosted campaigns.',
         'boosted_campaigns'             => 'This feature is only available for :boosted.',
-        'cannot_move_node_into_itself'  => 'The selected parent entity is invalid. This could be due to it having this entity as the parent.',
-        'node_must_not_be_a_descendant' => 'Invalid node (tag, parent location): it would be a descendant of itself.',
+        //'cannot_move_node_into_itself'  => 'The selected parent is invalid. This could be due to it having this entity as the parent.',
+        'node_must_not_be_a_descendant' => 'The selected parent is invalid. It would be a descendant of itself.',
         'unavailable_feature'           => 'Unavailable feature',
+        'invalid_node'                  => 'The selected parent is invalid. This can usually be fixed by giving the selected parent a parent of its own, then removing it.',
     ],
     'export'                    => 'Export',
     'fields'                    => [