diff --git a/wwwroot/js/data.js b/wwwroot/js/data.js
index c80b1a7..4cfd9cc 100644
--- a/wwwroot/js/data.js
+++ b/wwwroot/js/data.js
@@ -1,5 +1,5 @@
 import { api, adminApi } from "./api.js";
-import { handleAuthError, renderAllSuggestions, renderCounts, renderMySuggestions, renderPhasePill, renderPhaseTitles, renderResults, renderVotes, renderWelcome, setAuthUI, syncVoteScores } from "./ui.js";
+import { handleAuthError, renderAllSuggestions, renderCounts, renderMySuggestions, renderPhasePill, renderPhaseTitles, renderResults, renderVotes, renderWelcome, setAuthUI, syncVoteScores, updatePhaseNav } from "./ui.js";
 import { state, clearUserState } from "./state.js";
 
 export async function loadState() {
@@ -51,6 +51,7 @@ export async function loadVoteData() {
     } else {
         syncVoteScores();
     }
+    updatePhaseNav();
 }
 
 export async function loadResults() {
diff --git a/wwwroot/js/ui.js b/wwwroot/js/ui.js
index cb28ec6..02967c9 100644
--- a/wwwroot/js/ui.js
+++ b/wwwroot/js/ui.js
@@ -164,6 +164,7 @@ export function renderVotes() {
         list.appendChild(li);
     });
     updatePhaseNav();
+    updateMissingBadgeFromDom();
     list.querySelectorAll("input[type=range]").forEach((input) => {
         input.addEventListener("input", (e) => {
             if (state.votesFinal) return;
@@ -174,6 +175,7 @@ export function renderVotes() {
             const warn = $("warn-" + e.target.dataset.id);
             if (warn) warn.classList.add("hidden");
             syncLinkedSliders(e.target, val);
+            updateMissingBadgeFromDom();
         });
         input.addEventListener("change", async (e) => {
             if (state.votesFinal) return;
@@ -675,6 +677,21 @@ function missingVotesCount() {
     return missing < 0 ? 0 : missing;
 }
 
+function updateMissingBadgeFromDom() {
+    const badge = $("vote-missing");
+    if (!badge) return;
+    if (state.votesFinal || state.phase !== "Vote") {
+        badge.classList.add("hidden");
+        return;
+    }
+    const sliders = document.querySelectorAll("#vote-list input[type=range]");
+    const missing = Array.from(sliders).some((slider) => {
+        const scoreLabel = $("score-" + slider.dataset.id);
+        return !scoreLabel || scoreLabel.textContent === "—";
+    });
+    badge.classList.toggle("hidden", !missing);
+}
+
 function renderAdminVoteStatus() {
     if (!state.me?.isAdmin) return;
     const list = $("admin-voter-list");
@@ -956,6 +973,7 @@ export function updatePhaseNav() {
 
     renderAdminVoteStatus();
     renderAdminLinker();
+    updateMissingBadgeFromDom();
 
     // Toggle admin-only back buttons
     const backButtons = ["nav-vote-prev"];