# Bug: mountSuspensed with setup function
Vue API leak to template when using defineComponent() syntax
3.x❗ p4-important
reactive props destructure with default values doesn't work
workaround availablebug🍰 p2-nice-to-have
Template refs in .client components not available at `onMounted()`
documentation3.xbug🍰 p2-nice-to-have