diff --git a/osu.Desktop/Program.cs b/osu.Desktop/Program.cs
index cebbcb40b7..19cf7f5d46 100644
--- a/osu.Desktop/Program.cs
+++ b/osu.Desktop/Program.cs
@@ -37,9 +37,15 @@ namespace osu.Desktop
                 // See https://www.mongodb.com/docs/realm/sdk/dotnet/#supported-platforms
                 if (windowsVersion.Major < 6 || (windowsVersion.Major == 6 && windowsVersion.Minor <= 2))
                 {
+                    // If users running in compatibility mode becomes more of a common thing, we may want to provide better guidance or even consider
+                    // disabling it ourselves.
+                    // We could also better detect compatibility mode if required:
+                    // https://stackoverflow.com/questions/10744651/how-i-can-detect-if-my-application-is-running-under-compatibility-mode#comment58183249_10744730
                     SDL.SDL_ShowSimpleMessageBox(SDL.SDL_MessageBoxFlags.SDL_MESSAGEBOX_ERROR,
                         "Your operating system is too old to run osu!",
-                        "This version of osu! requires at least Windows 8.1 to run.\nPlease upgrade your operating system or consider using an older version of osu!.", IntPtr.Zero);
+                        "This version of osu! requires at least Windows 8.1 to run.\n"
+                        + "Please upgrade your operating system or consider using an older version of osu!.\n\n"
+                        + "If you are running a newer version of windows, please check you don't have \"Compatibility mode\" turned on for osu!", IntPtr.Zero);
                     return;
                 }
 
diff --git a/osu.Game/Online/API/Requests/Responses/APIScoresCollection.cs b/osu.Game/Online/API/Requests/Responses/APIScoresCollection.cs
index 38c67d92f4..4ef39be5e5 100644
--- a/osu.Game/Online/API/Requests/Responses/APIScoresCollection.cs
+++ b/osu.Game/Online/API/Requests/Responses/APIScoresCollection.cs
@@ -13,7 +13,7 @@ namespace osu.Game.Online.API.Requests.Responses
         [JsonProperty(@"scores")]
         public List<SoloScoreInfo> Scores;
 
-        [JsonProperty(@"userScore")]
+        [JsonProperty(@"user_score")]
         public APIScoreWithPosition UserScore;
     }
 }
diff --git a/osu.Game/Online/Spectator/OnlineSpectatorClient.cs b/osu.Game/Online/Spectator/OnlineSpectatorClient.cs
index 9bbc2a11c7..030ca724c4 100644
--- a/osu.Game/Online/Spectator/OnlineSpectatorClient.cs
+++ b/osu.Game/Online/Spectator/OnlineSpectatorClient.cs
@@ -66,10 +66,10 @@ namespace osu.Game.Online.Spectator
 
                     await connector.Reconnect();
                     await BeginPlayingInternal(state);
-                    return;
                 }
 
-                throw;
+                // Exceptions can occur if, for instance, the locally played beatmap doesn't have a server-side counterpart.
+                // For now, let's ignore these so they don't cause unobserved exceptions to appear to the user (and sentry).
             }
         }