diff --git a/src/livekit/options.ts b/src/livekit/options.ts
index 86d3ee0..f2d1c6e 100644
--- a/src/livekit/options.ts
+++ b/src/livekit/options.ts
@@ -16,10 +16,6 @@ const defaultLiveKitPublishOptions: TrackPublishDefaults = {
   simulcast: true,
   videoSimulcastLayers: [VideoPresets.h180, VideoPresets.h216] as VideoPreset[],
   screenShareEncoding: ScreenSharePresets.h1080fps30.encoding,
-  screenShareSimulcastLayers: [
-    new VideoPreset(1920, 1080, 1_500_000, 5, "medium"),
-    ScreenSharePresets.h1080fps15,
-  ] as VideoPreset[],
   stopMicTrackOnMute: false,
   videoCodec: "vp8",
   videoEncoding: VideoPresets.h360.encoding,
diff --git a/src/room/GroupCallView.tsx b/src/room/GroupCallView.tsx
index 64c3e96..7df0a98 100644
--- a/src/room/GroupCallView.tsx
+++ b/src/room/GroupCallView.tsx
@@ -231,7 +231,7 @@ export function GroupCallView({
       <OpenIDLoader
         client={client}
         livekitServiceURL={livekitServiceURL}
-        roomName={matrixInfo.roomName}
+        roomName={`${groupCall.room.roomId}-${groupCall.groupCallId}`}
       >
         <ActiveCall
           client={client}