diff --git a/app/Http/Requests/AnswerFormRequest.php b/app/Http/Requests/AnswerFormRequest.php
index 3ba1caae..4057c9bc 100644
--- a/app/Http/Requests/AnswerFormRequest.php
+++ b/app/Http/Requests/AnswerFormRequest.php
@@ -87,11 +87,6 @@ class AnswerFormRequest extends FormRequest
                 $rules[] = 'nullable';
             }
 
-            // User custom validation
-            if(!(Str::of($property['type'])->startsWith('nf-')) && isset($property['validation'])) {
-                $rules[] = (new CustomFieldValidationRule($property['validation'], $data));
-            }
-
             // Clean id to escape "."
             $propertyId = $property['id'];
             if (in_array($property['type'], ['multi_select'])) {
@@ -101,6 +96,11 @@ class AnswerFormRequest extends FormRequest
                 $rules = array_merge($rules, $this->getPropertyRules($property));
             }
 
+            // User custom validation
+            if(!(Str::of($property['type'])->startsWith('nf-')) && isset($property['validation'])) {
+                $rules[] = (new CustomFieldValidationRule($property['validation'], $data));
+            }
+
             $this->requestRules[$propertyId] = $rules;
         }
 
diff --git a/app/Service/Forms/FormLogicConditionChecker.php b/app/Service/Forms/FormLogicConditionChecker.php
index a7573859..dac6a900 100644
--- a/app/Service/Forms/FormLogicConditionChecker.php
+++ b/app/Service/Forms/FormLogicConditionChecker.php
@@ -84,7 +84,10 @@ class FormLogicConditionChecker
 
     private function checkContains($condition, $fieldValue): bool
     {
-        return ($fieldValue && is_array($fieldValue)) ? in_array($condition['value'], $fieldValue) : false;
+        if (is_array($fieldValue)) {
+            return in_array($condition['value'], $fieldValue);
+        }
+        return \Str::contains($fieldValue, $condition['value']);
     }
 
     private function checkListContains($condition, $fieldValue): bool