Fix

node_modules/vitepress/dist/client/app/components/Content.js

@@ -0,0 +1,22 @@
+import { defineComponent, h } from 'vue';
+import { useData, useRoute } from 'vitepress';
+import { contentUpdatedCallbacks } from '../utils';
+const runCbs = () => contentUpdatedCallbacks.forEach((fn) => fn());
+export const Content = defineComponent({
+    name: 'VitePressContent',
+    props: {
+        as: { type: [Object, String], default: 'div' }
+    },
+    setup(props) {
+        const route = useRoute();
+        const { site } = useData();
+        return () => h(props.as, site.value.contentProps ?? { style: { position: 'relative' } }, [
+            route.component
+                ? h(route.component, {
+                    onVnodeMounted: runCbs,
+                    onVnodeUpdated: runCbs
+                })
+                : '404 Page Not Found'
+        ]);
+    }
+});