diff --git a/authentik/stages/prompt/models.py b/authentik/stages/prompt/models.py
index 9fa5644d9..c5a00095f 100644
--- a/authentik/stages/prompt/models.py
+++ b/authentik/stages/prompt/models.py
@@ -93,7 +93,7 @@ class Prompt(SerializerModel):
         if self.type == FieldTypes.HIDDEN:
             field_class = HiddenField
             kwargs["required"] = False
-            kwargs["initial"] = self.placeholder
+            kwargs["default"] = self.placeholder
         if self.type == FieldTypes.CHECKBOX:
             field_class = BooleanField
             kwargs["required"] = False
diff --git a/web/src/pages/property-mappings/PropertyMappingListPage.ts b/web/src/pages/property-mappings/PropertyMappingListPage.ts
index 5c3e8738e..2ebc9f37d 100644
--- a/web/src/pages/property-mappings/PropertyMappingListPage.ts
+++ b/web/src/pages/property-mappings/PropertyMappingListPage.ts
@@ -43,7 +43,7 @@ export class PropertyMappingListPage extends TablePage<PropertyMapping> {
             page: page,
             pageSize: PAGE_SIZE,
             search: this.search || "",
-            managedIsnull: this.hideManaged.toString(),
+            managedIsnull: this.hideManaged ? "true" : undefined,
         });
     }
 
@@ -126,6 +126,7 @@ export class PropertyMappingListPage extends TablePage<PropertyMapping> {
                     <div class="pf-c-check">
                         <input class="pf-c-check__input" type="checkbox" id="hide-managed" name="hide-managed" ?checked=${this.hideManaged} @change=${() => {
                             this.hideManaged = !this.hideManaged;
+                            this.page = 1;
                             this.fetch();
                         }} />
                         <label class="pf-c-check__label" for="hide-managed">${gettext("Hide managed mappings")}</label>