diff --git a/Flow.Launcher.Core/Plugin/JsonPRCModel.cs b/Flow.Launcher.Core/Plugin/JsonPRCModel.cs
index 2b3bd61b0..5232e46da 100644
--- a/Flow.Launcher.Core/Plugin/JsonPRCModel.cs
+++ b/Flow.Launcher.Core/Plugin/JsonPRCModel.cs
@@ -30,12 +30,8 @@ namespace Flow.Launcher.Core.Plugin
         public string Data { get; set; }
     }
 
-    public class JsonRPCModelBase
-    {
-        public int Id { get; set; }
-    }
 
-    public class JsonRPCResponseModel : JsonRPCModelBase
+    public class JsonRPCResponseModel
     {
         public string Result { get; set; }
 
@@ -49,18 +45,20 @@ namespace Flow.Launcher.Core.Plugin
 
         public string DebugMessage { get; set; }
     }
-
-    public class JsonRPCRequestModel : JsonRPCModelBase
+    
+    public class JsonRPCRequestModel
     {
-        [JsonPropertyName("method")]
         public string Method { get; set; }
 
-        [JsonPropertyName("parameters")]
         public object[] Parameters { get; set; }
 
+        private static readonly JsonSerializerOptions options = new()
+        {
+            PropertyNamingPolicy = JsonNamingPolicy.CamelCase
+        };
         public override string ToString()
         {
-            return JsonSerializer.Serialize(this);
+            return JsonSerializer.Serialize(this, options);
         }
     }
 
@@ -77,7 +75,6 @@ namespace Flow.Launcher.Core.Plugin
     /// </summary>
     public class JsonRPCClientRequestModel : JsonRPCRequestModel
     {
-        [JsonPropertyName("dontHideAfterAction")]
         public bool DontHideAfterAction { get; set; }
     }
 
diff --git a/Flow.Launcher.Core/Plugin/JsonRPCPlugin.cs b/Flow.Launcher.Core/Plugin/JsonRPCPlugin.cs
index 65f8fc608..431458881 100644
--- a/Flow.Launcher.Core/Plugin/JsonRPCPlugin.cs
+++ b/Flow.Launcher.Core/Plugin/JsonRPCPlugin.cs
@@ -47,8 +47,10 @@ namespace Flow.Launcher.Core.Plugin
             }
         }
 
-        private static readonly JsonSerializerOptions _options = new()
+        private static readonly JsonSerializerOptions options = new()
         {
+            PropertyNameCaseInsensitive = true,
+            IgnoreNullValues = true,
             Converters =
             {
                 new JsonObjectConverter()
@@ -60,8 +62,10 @@ namespace Flow.Launcher.Core.Plugin
             if (output == Stream.Null) return null;
 
             var queryResponseModel = await
-                JsonSerializer.DeserializeAsync<JsonRPCQueryResponseModel>(output, _options);
+                JsonSerializer.DeserializeAsync<JsonRPCQueryResponseModel>(output, options);
 
+            await output.DisposeAsync();
+            
             return ParseResults(queryResponseModel);
         }
 
@@ -70,7 +74,7 @@ namespace Flow.Launcher.Core.Plugin
             if (string.IsNullOrEmpty(output)) return null;
 
             var queryResponseModel =
-                JsonSerializer.Deserialize<JsonRPCQueryResponseModel>(output, _options);
+                JsonSerializer.Deserialize<JsonRPCQueryResponseModel>(output, options);
             return ParseResults(queryResponseModel);
         }
 
@@ -110,7 +114,7 @@ namespace Flow.Launcher.Core.Plugin
                             return !result.JsonRPCAction.DontHideAfterAction;
                         }
 
-                        var jsonRpcRequestModel = JsonSerializer.Deserialize<JsonRPCRequestModel>(actionResponse, _options);
+                        var jsonRpcRequestModel = JsonSerializer.Deserialize<JsonRPCRequestModel>(actionResponse, options);
 
                         if (jsonRpcRequestModel?.Method?.StartsWith("Flow.Launcher.") ?? false)
                         {
diff --git a/Flow.Launcher/Storage/UserSelectedRecord.cs b/Flow.Launcher/Storage/UserSelectedRecord.cs
index 8d8956cfa..23d8c4faf 100644
--- a/Flow.Launcher/Storage/UserSelectedRecord.cs
+++ b/Flow.Launcher/Storage/UserSelectedRecord.cs
@@ -28,6 +28,11 @@ namespace Flow.Launcher.Storage
 
         private static int GenerateStaticHashCode(string s, int start = HASH_INITIAL)
         {
+            if (s == null)
+            {
+                return start;
+            }
+
             unchecked
             {
                 // skip the empty space
@@ -101,4 +106,4 @@ namespace Flow.Launcher.Storage
             return selectedCount;
         }
     }
-}
+}
\ No newline at end of file