Metadata pannel doesn't open anymore (Missing required prop: "opened")

on preprod

[Vue warn]: Missing required prop: "opened"

found in

---> <ElementMetadata> at vue/Element/Metadata/Metadata.vue
       <DropdownContent> at vue/DropdownContent.vue
         <DetailsPanel> at vue/Element/DetailsPanel.vue
           <Main> at vue/Element/Main.vue
             <App> at vue/App.vue
               <Root>