diff --git a/public/js/pages/Settings.js b/public/js/pages/Settings.js
index 4b10395..e2e4324 100644
--- a/public/js/pages/Settings.js
+++ b/public/js/pages/Settings.js
@@ -129,6 +129,24 @@ class SettingsPage {
         } catch (err) {
             this.liveAnalysisStatus = { status: 'error', error: err.message };
         }
+        const projectionPresentation = LiveAnalysisPresentation.present(this.liveAnalysisStatus);
+        if (!projectionPresentation.busy && API.sources?.getStatus) {
+            try {
+                const sourceStatuses = await API.sources.getStatus();
+                const liveSourceSyncing = Array.isArray(sourceStatuses) && sourceStatuses.some(source =>
+                    source?.status === 'syncing' && ['live', 'all'].includes(source?.type)
+                );
+                if (liveSourceSyncing) {
+                    this.liveAnalysisStatus = {
+                        status: 'building',
+                        phase: 'refreshing_live_sources',
+                        externalSourceSync: true
+                    };
+                }
+            } catch (err) {
+                // Source status is supplementary; projection status remains authoritative.
+            }
+        }
         this.renderLiveAnalysisStatus(this.liveAnalysisStatus);
         const presentation = LiveAnalysisPresentation.present(this.liveAnalysisStatus);
         if (presentation.busy) this.startLiveAnalysisPolling();
@@ -154,7 +172,7 @@ class SettingsPage {
         const presentation = LiveAnalysisPresentation.present(status);
         buttons.forEach(button => { button.disabled = presentation.busy; });
         const rebuildButton = document.getElementById('live-rebuild-catalog-button');
-        const fullRefreshBusy = presentation.busy &&
+        const fullRefreshBusy = presentation.busy && !status.externalSourceSync &&
             (this.currentLiveAnalysisAction === 'rebuild' ||
                 LiveAnalysisPresentation.isFullRefreshPhase(presentation.phase));
         if (rebuildButton) rebuildButton.textContent = fullRefreshBusy ? 'Refreshing…' : 'Run full refresh';
diff --git a/test/t47LiveAnalysisExternalSyncProgressRegression.test.js b/test/t47LiveAnalysisExternalSyncProgressRegression.test.js
new file mode 100644
index 0000000..c9b9e30
--- /dev/null
+++ b/test/t47LiveAnalysisExternalSyncProgressRegression.test.js
@@ -0,0 +1,134 @@
+const test = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('node:fs');
+const path = require('node:path');
+const { JSDOM } = require('jsdom');
+
+const root = path.resolve(__dirname, '..');
+
+function readPublicScript(relativePath, exposeGlobal = '') {
+    const source = fs.readFileSync(path.join(root, 'public', relativePath), 'utf8');
+    return exposeGlobal ? `${source}\nwindow.${exposeGlobal} = ${exposeGlobal};` : source;
+}
+
+function createSettingsDom() {
+    const dom = new JSDOM(`<!doctype html>
+        <button type="button" id="live-check-new-button">Check new streams</button>
+        <button type="button" id="live-rebuild-catalog-button">Run full refresh</button>
+        <button type="button" id="live-analysis-button">Analyze channels</button>
+        <div id="live-analysis-status" role="status"></div>
+        <div id="live-analysis-progress" hidden>
+          <div id="live-analysis-progress-track"><span id="live-analysis-progress-bar"></span></div>
+          <div id="live-analysis-progress-text"></div>
+        </div>
+        <div id="live-analysis-fallback"></div>
+        <button type="button" id="live-analysis-details-toggle" hidden></button>
+        <pre id="live-analysis-error-details" hidden></pre>
+    `, {
+        url: 'http://nodecast.test/',
+        runScripts: 'outside-only',
+        pretendToBeVisual: true
+    });
+    const { window } = dom;
+    window.console = console;
+    window.eval(readPublicScript('js/services/liveAnalysisPresentation.js'));
+    window.eval(readPublicScript('js/pages/Settings.js', 'SettingsPage'));
+    return window;
+}
+
+test('Channel Analysis keeps progress visible for a live source sync started outside the current UI action', async () => {
+    const window = createSettingsDom();
+    let sourceStatusRead = false;
+    window.API = {
+        live: {
+            getProjectionStatus: async () => ({
+                status: 'success',
+                phase: 'complete',
+                projectedCount: 42,
+                processed: 42,
+                total: 42
+            })
+        },
+        sources: {
+            getStatus: async () => {
+                sourceStatusRead = true;
+                return [{
+                    source_id: 1,
+                    type: 'all',
+                    status: 'syncing',
+                    last_sync: Date.now(),
+                    error: null
+                }];
+            }
+        }
+    };
+
+    const settingsPage = Object.create(window.SettingsPage.prototype);
+    settingsPage.app = {
+        player: { settings: { languageDetectionMode: 'algo' } },
+        channelList: { loadChannels() {} }
+    };
+    settingsPage.layaStatus = {};
+    settingsPage.currentLiveAnalysisAction = '';
+
+    try {
+        await settingsPage.loadLiveAnalysisStatus();
+
+        assert.equal(sourceStatusRead, true, 'Settings should consult /api/sources/status when projection status is not busy');
+        assert.equal(window.document.getElementById('live-analysis-progress').hidden, false);
+        assert.equal(window.document.getElementById('live-analysis-status').textContent, 'Refreshing IPTV sources…');
+        assert.equal(window.document.getElementById('live-analysis-progress-text').textContent, 'In progress — this step may take several minutes.');
+        assert.equal(window.document.getElementById('live-analysis-progress-track').classList.contains('indeterminate'), true);
+        const rebuildButton = window.document.getElementById('live-rebuild-catalog-button');
+        assert.equal(rebuildButton.disabled, true);
+        assert.equal(rebuildButton.textContent, 'Run full refresh');
+    } finally {
+        window.close();
+    }
+});
+
+test('busy projection status remains authoritative over a simultaneous source sync', async () => {
+    const window = createSettingsDom();
+    window.API = {
+        live: { getProjectionStatus: async () => ({ status: 'building', phase: 'laya_language', phaseProcessed: 1, phaseTotal: 2 }) },
+        sources: { getStatus: async () => { throw new Error('should not be called'); } }
+    };
+    const settingsPage = Object.create(window.SettingsPage.prototype);
+    settingsPage.app = { player: { settings: { languageDetectionMode: 'laya' } } };
+    settingsPage.layaStatus = {};
+    settingsPage.currentLiveAnalysisAction = '';
+
+    try {
+        await settingsPage.loadLiveAnalysisStatus();
+        assert.equal(window.document.getElementById('live-analysis-status').textContent, 'Detecting stream languages…');
+        assert.equal(window.document.getElementById('live-rebuild-catalog-button').textContent, 'Refreshing…');
+    } finally {
+        window.close();
+    }
+});
+
+test('EPG-only source sync is ignored and source status failures preserve projection status', async () => {
+    for (const getStatus of [
+        async () => [{ type: 'epg', status: 'syncing' }],
+        async () => { throw new Error('source status unavailable'); }
+    ]) {
+        const window = createSettingsDom();
+        window.API = {
+            live: { getProjectionStatus: async () => ({ status: 'success', phase: 'complete', projectedCount: 42 }) },
+            sources: { getStatus }
+        };
+        const settingsPage = Object.create(window.SettingsPage.prototype);
+        settingsPage.app = { player: { settings: { languageDetectionMode: 'algo' } } };
+        settingsPage.layaStatus = {};
+        settingsPage.currentLiveAnalysisAction = '';
+
+        try {
+            const status = await settingsPage.loadLiveAnalysisStatus();
+            assert.equal(status.phase, 'complete');
+            assert.equal(window.document.getElementById('live-analysis-progress').hidden, true);
+            assert.equal(window.document.getElementById('live-rebuild-catalog-button').disabled, false);
+        } finally {
+            window.close();
+        }
+    }
+});