diff --git a/app/components/instructeurs/column_filter_value_component.rb b/app/components/instructeurs/column_filter_value_component.rb
index 0fde78d38..ef83d1aa6 100644
--- a/app/components/instructeurs/column_filter_value_component.rb
+++ b/app/components/instructeurs/column_filter_value_component.rb
@@ -16,7 +16,8 @@ class Instructeurs::ColumnFilterValueComponent < ApplicationComponent
         id: 'value',
         name: "filters[][filter]",
         class: 'fr-select',
-        data: { no_autosubmit: true }
+        data: { no_autosubmit: true },
+        required: true
     else
       tag.input(
         class: 'fr-input',
diff --git a/app/models/assign_to.rb b/app/models/assign_to.rb
index cfab77484..19d1fd847 100644
--- a/app/models/assign_to.rb
+++ b/app/models/assign_to.rb
@@ -32,7 +32,7 @@ class AssignTo < ApplicationRecord
     if errors.present?
       Sentry.capture_message(
         "Destroying invalid ProcedurePresentation",
-        extra: { procedure_presentation_id: procedure_presentation.id, errors: }
+        extra: { procedure_presentation_id: procedure_presentation.id, errors: errors.full_messages }
       )
       self.procedure_presentation = nil
     end