Reset overwrite url if it is invalid (does fail to reach sfu)

src/state/CallViewModel/localMember/LocalTransport.ts

@@ -23,6 +23,7 @@ import {
 } from "rxjs";
 import { logger as rootLogger } from "matrix-js-sdk/lib/logger";
 import { AutoDiscovery } from "matrix-js-sdk/lib/autodiscovery";
+import { t } from "i18next";
 
 import { type Behavior } from "../../Behavior.ts";
 import { type Epoch, type ObservableScope } from "../../ObservableScope.ts";
@@ -178,11 +179,25 @@ async function makeTransport(
 
   if (!transport) throw new MatrixRTCTransportMissingError(domain ?? ""); // this will call the jwt/sfu/get endpoint to pre create the livekit room.
 
-  await getSFUConfigWithOpenID(
-    client,
-    transport.livekit_service_url,
-    transport.livekit_alias,
-  );
+  try {
+    await getSFUConfigWithOpenID(
+      client,
+      transport.livekit_service_url,
+      transport.livekit_alias,
+    );
+  } catch (e) {
+    if (urlFromDevSettings !== undefined) {
+      logger.error(
+        "Failed to get SFU config with dev settings overwrite, Resetting dev settings",
+      );
+      customLivekitUrl.setValue(
+        null,
+        `\n${t("developer_mode.custom_url_update_reason_invalid")}`,
+      );
+    } else {
+      throw e;
+    }
+  }
 
   return transport;
 }