diff --git a/src/Fieldtypes/ImportMappingsFieldtype.php b/src/Fieldtypes/ImportMappingsFieldtype.php
index 71681b5..d396621 100644
--- a/src/Fieldtypes/ImportMappingsFieldtype.php
+++ b/src/Fieldtypes/ImportMappingsFieldtype.php
@@ -69,7 +69,6 @@ public function extraRules(): array
 
         return collect($this->field->value())
             ->reject(fn ($row) => empty($row['key']))
-            ->filter(fn ($row) => $fields->has($row['key']))
             ->flatMap(function (array $row, string $field) use ($fields) {
                 $rules = $fields
                     ->get($field)
diff --git a/src/Imports/Blueprint.php b/src/Imports/Blueprint.php
index 4459518..57aee79 100644
--- a/src/Imports/Blueprint.php
+++ b/src/Imports/Blueprint.php
@@ -211,7 +211,7 @@ function (string $attribute, mixed $value, Closure $fail) {
                                         'type' => 'radio',
                                         'display' => __('Unique Field'),
                                         'instructions' => __('importer::messages.unique_field_instructions'),
-                                        'options' => $import?->mappingFields()->all()
+                                        'options' => $import?->destinationBlueprint()->fields()->all()
                                             ->filter(fn ($field) => in_array($field->type(), ['text', 'integer', 'slug']))
                                             ->map(fn ($field) => ['key' => $field->handle(), 'value' => $field->display()])
                                             ->values(),
diff --git a/tests/Imports/UpdateImportTest.php b/tests/Imports/UpdateImportTest.php
index 1741d9f..c0e8375 100644
--- a/tests/Imports/UpdateImportTest.php
+++ b/tests/Imports/UpdateImportTest.php
@@ -5,6 +5,7 @@
 use Illuminate\Support\Facades\File;
 use Illuminate\Support\Facades\Storage;
 use PHPUnit\Framework\Attributes\Test;
+use Statamic\Facades\Blink;
 use Statamic\Facades\Collection;
 use Statamic\Facades\Taxonomy;
 use Statamic\Facades\User;
@@ -229,9 +230,19 @@ public function validation_error_is_thrown_for_terms_import_without_slug_mapping
     {
         Taxonomy::make('tags')->save();
 
+        Storage::disk('local')->put('statamic/imports/tags/tags.csv', '');
+
+        $import = Import::make()->name('Users')->config([
+            'type' => 'csv',
+            'path' => Storage::disk('local')->path('statamic/imports/tags/tags.csv'),
+            'destination' => ['type' => 'terms', 'taxonomy' => 'tags', 'blueprint' => 'tag'],
+        ]);
+
+        $import->save();
+
         $this
             ->actingAs(User::make()->makeSuper()->save())
-            ->patch("/cp/utilities/importer/{$this->import->id()}", [
+            ->patch("/cp/utilities/importer/{$import->id()}", [
                 'name' => 'Posts',
                 'file' => ['posts.csv'],
                 'destination' => ['type' => 'terms', 'taxonomy' => ['tags'], 'blueprint' => 'tag'],
@@ -258,9 +269,19 @@ public function validation_error_is_thrown_for_users_import_without_email_mappin
             ],
         ]);
 
+        Storage::disk('local')->put('statamic/imports/users/users.csv', '');
+
+        $import = Import::make()->name('Users')->config([
+            'type' => 'csv',
+            'path' => Storage::disk('local')->path('statamic/imports/users/users.csv'),
+            'destination' => ['type' => 'users'],
+        ]);
+
+        $import->save();
+
         $this
             ->actingAs(User::make()->makeSuper()->save())
-            ->patch("/cp/utilities/importer/{$this->import->id()}", [
+            ->patch("/cp/utilities/importer/{$import->id()}", [
                 'name' => 'Posts',
                 'file' => ['posts.csv'],
                 'destination' => ['type' => 'users'],