Workaround for beta 5+.

Other Projects/WWDCPlayer/WWDCPlayer/MainView.swift

@@ -62,7 +62,7 @@ struct VideoListView : View {
                 Section(header: Text(day.rawValue.uppercased()).fontWeight(.bold)) {
                     ForEach(self.userData.videos.filter { $0.weekDay == day }) { video in
                         if !self.userData.showFavoriteOnly || video.isFavorite {
-                            VideoRow(video: video)
+                            VideoRow(video: video, isFavorite: video.isFavorite)
                         }
                     }
                 }

Other Projects/WWDCPlayer/WWDCPlayer/VideoRow.swift

@@ -13,6 +13,7 @@ struct VideoRow : View {
     @EnvironmentObject var userData: UserData
     
     var video: Video
+    var isFavorite = false
     
     var body: some View {
         HStack {