diff --git a/apps/desktop/src/lib/window-loader.ts b/apps/desktop/src/lib/window-loader.ts
index 9ab01aed160..cb8c51af626 100644
--- a/apps/desktop/src/lib/window-loader.ts
+++ b/apps/desktop/src/lib/window-loader.ts
@@ -24,12 +24,21 @@ export function registerRoute(props: {
 	if (isDev) {
 		// Development: load from Vite dev server with hash routing
 		const url = `http://localhost:${PORTS.VITE_DEV_SERVER}/#/`;
-		props.browserWindow.loadURL(url);
+		console.log(`[window-loader] Loading dev URL: ${url}`);
+		props.browserWindow.loadURL(url).catch((error) => {
+			console.error("[window-loader] Failed to load dev URL:", error);
+		});
 	} else {
 		// Production: load from custom protocol with hash routing
 		// Origin becomes: superset://app (trusted by Better Auth)
-		const fileName = props.htmlFile.split("/").pop() || "index.html";
+		// Split on both forward and back slashes for cross-platform compatibility
+		const fileName = props.htmlFile.split(/[/\\]/).pop() || "index.html";
 		const url = `${PROTOCOL_SCHEME}://app/${fileName}#/`;
-		props.browserWindow.loadURL(url);
+		console.log(`[window-loader] Loading production URL: ${url}`);
+		console.log(`[window-loader] HTML file path: ${props.htmlFile}`);
+		props.browserWindow.loadURL(url).catch((error) => {
+			console.error("[window-loader] Failed to load production URL:", error);
+			console.error("[window-loader] Attempted URL:", url);
+		});
 	}
 }
diff --git a/apps/desktop/src/main/index.ts b/apps/desktop/src/main/index.ts
index f679d450456..c51aa389718 100644
--- a/apps/desktop/src/main/index.ts
+++ b/apps/desktop/src/main/index.ts
@@ -211,6 +211,14 @@ if (!gotTheLock) {
 		// Register custom protocol to serve app files in production
 		// This provides a stable origin (superset://app or superset-dev://app) for Better Auth CORS
 		if (process.env.NODE_ENV !== "development") {
+			console.log(
+				`[main] Registering protocol handler for: ${PROTOCOL_SCHEME}`,
+			);
+			console.log(`[main] __dirname: ${__dirname}`);
+			console.log(
+				`[main] Renderer path: ${path.join(__dirname, "../renderer")}`,
+			);
+
 			protocol.handle(PROTOCOL_SCHEME, (request) => {
 				// Parse URL to extract pathname (e.g., superset://app/index.html#/ -> /index.html)
 				const parsedUrl = new URL(request.url);
@@ -218,6 +226,9 @@ if (!gotTheLock) {
 				const filePath = path.normalize(
 					path.join(__dirname, "../renderer", pathname),
 				);
+				console.log(`[protocol] Request: ${request.url}`);
+				console.log(`[protocol] Pathname: ${pathname}`);
+				console.log(`[protocol] Resolved file path: ${filePath}`);
 				return net.fetch(`file://${filePath}`);
 			});
 		}
diff --git a/apps/desktop/src/main/windows/main.ts b/apps/desktop/src/main/windows/main.ts
index dc40dfeebeb..00a74a9cb27 100644
--- a/apps/desktop/src/main/windows/main.ts
+++ b/apps/desktop/src/main/windows/main.ts
@@ -171,6 +171,7 @@ export async function MainWindow() {
 	);
 
 	window.webContents.on("did-finish-load", async () => {
+		console.log("[main-window] Renderer loaded successfully");
 		// Restore maximized state if it was saved
 		if (initialBounds.isMaximized) {
 			window.maximize();
@@ -178,6 +179,28 @@ export async function MainWindow() {
 		window.show();
 	});
 
+	window.webContents.on(
+		"did-fail-load",
+		(_event, errorCode, errorDescription, validatedURL) => {
+			console.error("[main-window] Failed to load renderer:");
+			console.error(`  Error code: ${errorCode}`);
+			console.error(`  Description: ${errorDescription}`);
+			console.error(`  URL: ${validatedURL}`);
+			// Show the window anyway so user can see something is wrong
+			window.show();
+		},
+	);
+
+	window.webContents.on("render-process-gone", (_event, details) => {
+		console.error("[main-window] Renderer process gone:", details);
+	});
+
+	window.webContents.on("preload-error", (_event, preloadPath, error) => {
+		console.error("[main-window] Preload script error:");
+		console.error(`  Path: ${preloadPath}`);
+		console.error(`  Error:`, error);
+	});
+
 	window.on("close", () => {
 		// Save window state first, before any cleanup
 		const isMaximized = window.isMaximized();