diff --git a/src/MaaWpfGui/Configuration/Factory/ConfigFactory.cs b/src/MaaWpfGui/Configuration/Factory/ConfigFactory.cs
index 39021e9caa..6f03b481b3 100644
--- a/src/MaaWpfGui/Configuration/Factory/ConfigFactory.cs
+++ b/src/MaaWpfGui/Configuration/Factory/ConfigFactory.cs
@@ -20,6 +20,7 @@ using System.IO;
 using System.Linq;
 using System.Text.Encodings.Web;
 using System.Text.Json;
+using System.Text.Json.Nodes;
 using System.Text.Json.Serialization;
 using System.Text.Unicode;
 using System.Threading;
@@ -167,9 +168,14 @@ public static class ConfigFactory
                 _logger.Warning("{File} save failed", _configBakFile);
             }
 
-            if (ParseJsonFile(ConfigurationHelper.ConfigFile) is JObject oldConfigJson && oldConfigJson["Configurations"] is JObject configurationsObj)
+            if (ParseJsonFile(ConfigurationHelper.ConfigFile) is JsonObject oldConfigJson && oldConfigJson["Configurations"] is JsonObject configurationsObj)
             {
-                var configNames = configurationsObj.Properties().Select(i => i.Name);
+                if (oldConfigJson["Current"]?.GetValue<string>() is string oldCurrent && parsed.Current != oldCurrent)
+                {
+                    _logger.Warning("Current configuration in old configuration is {OldCurrent}, but in new configuration is {NewCurrent}, switching to old current", oldCurrent, parsed.Current);
+                    parsed.Current = oldCurrent;
+                }
+                var configNames = configurationsObj.Select(i => i.Key);
                 foreach (var name in parsed.Configurations.Select(i => i.Key).Except(configNames))
                 {
                     parsed.Configurations.Remove(name);
@@ -177,6 +183,11 @@ public static class ConfigFactory
                 }
             }
 
+            if (parsed.Configurations.All(i => i.Key != parsed.Current))
+            {
+                parsed.Configurations.Add(parsed.Current, new SpecificConfig());
+            }
+
             return parsed;
 
             void SpecificConfigBind(string name, SpecificConfig config)
@@ -219,7 +230,7 @@ public static class ConfigFactory
                 }
             }
 
-            JObject? ParseJsonFile(string filePath)
+            JsonObject? ParseJsonFile(string filePath)
             {
                 if (File.Exists(filePath) is false)
                 {
@@ -229,7 +240,7 @@ public static class ConfigFactory
                 var str = File.ReadAllText(filePath);
                 try
                 {
-                    var obj = (JObject?)Newtonsoft.Json.JsonConvert.DeserializeObject(str);
+                    var obj = JsonSerializer.Deserialize<JsonObject>(str);
                     return obj ?? throw new Exception("Failed to parse json file");
                 }
                 catch (Exception ex)
diff --git a/src/MaaWpfGui/Configuration/Root.cs b/src/MaaWpfGui/Configuration/Root.cs
index fa213a3231..dc56a92400 100644
--- a/src/MaaWpfGui/Configuration/Root.cs
+++ b/src/MaaWpfGui/Configuration/Root.cs
@@ -35,6 +35,7 @@ public class Root : INotifyPropertyChanged
 
     public int ConfigVersion { get; set; } = 1;
 
+    [JsonInclude]
     public string Current { get; set; } = ConfigurationKeys.DefaultConfiguration;
 
     [JsonInclude]
@@ -50,18 +51,9 @@ public class Root : INotifyPropertyChanged
     public SpecificConfig CurrentConfig
     {
         get {
-            if (Configurations.TryGetValue(Current, out var result))
-            {
-                return result;
-            }
-            else
-            {
-                var defaultConfig = new SpecificConfig();
-                Configurations[Current] = defaultConfig;
-                return defaultConfig;
-            }
+            Configurations.TryGetValue(Current, out var result);
+            return result!;
         }
-
         set => Configurations[Current] = value;
     }