diff --git a/Plain Craft Launcher 2/FormMain.xaml.vb b/Plain Craft Launcher 2/FormMain.xaml.vb
index 8b98606..0da0787 100644
--- a/Plain Craft Launcher 2/FormMain.xaml.vb	
+++ b/Plain Craft Launcher 2/FormMain.xaml.vb	
@@ -10,7 +10,7 @@ Public Class FormMain
         Dim FeatureList As New List(Of KeyValuePair(Of Integer, String))
         '统计更新日志条目
 #If BETA Then
-        If LastVersion < 276 Then 'Release 2.4.6
+        If LastVersion < 276 Then 'Release 2.4.7
             FeatureList.Add(New KeyValuePair(Of Integer, String)(4, "增加 在游戏启动前执行命令 设置"))
             FeatureList.Add(New KeyValuePair(Of Integer, String)(3, "在百宝箱添加了清理 MC 日志、崩溃报告的按钮"))
             FeatureList.Add(New KeyValuePair(Of Integer, String)(2, "优化界面动画，修改部分配色"))
@@ -117,6 +117,10 @@ Public Class FormMain
         '3：BUG+ IMP* FEAT-
         '2：BUG* IMP-
         '1：BUG-
+        If LastVersion < 278 Then 'Snapshot 2.4.7
+            If LastVersion = 277 Then FeatureList.Add(New KeyValuePair(Of Integer, String)(1, "修复设置背景音乐可能导致无法启动 PCL 的 Bug"))
+            BugCount += 2
+        End If
         If LastVersion < 277 Then 'Snapshot 2.4.6
             FeatureList.Add(New KeyValuePair(Of Integer, String)(3, "在百宝箱添加了清理 MC 日志、崩溃报告的按钮"))
             FeatureCount += 8
diff --git a/Plain Craft Launcher 2/Modules/Base/ModBase.vb b/Plain Craft Launcher 2/Modules/Base/ModBase.vb
index 61d8c4c..b590424 100644
--- a/Plain Craft Launcher 2/Modules/Base/ModBase.vb	
+++ b/Plain Craft Launcher 2/Modules/Base/ModBase.vb	
@@ -10,12 +10,12 @@ Public Module ModBase
 #Region "声明"
 
     '下列版本信息由更新器自动修改
-    Public Const VersionBaseName As String = "2.4.6" '不含分支前缀的显示用版本名
-    Public Const VersionStandardCode As String = "2.4.6." & VersionBranchCode '标准格式的四段式版本号
+    Public Const VersionBaseName As String = "2.4.7" '不含分支前缀的显示用版本名
+    Public Const VersionStandardCode As String = "2.4.7." & VersionBranchCode '标准格式的四段式版本号
 #If BETA Then
     Public Const VersionCode As Integer = 276 'Release
 #Else
-    Public Const VersionCode As Integer = 277 'Snapshot
+    Public Const VersionCode As Integer = 278 'Snapshot
 #End If
     '自动生成的版本信息
     Public Const VersionDisplayName As String = VersionBranchName & " " & VersionBaseName
diff --git a/Plain Craft Launcher 2/Modules/Minecraft/ModMinecraft.vb b/Plain Craft Launcher 2/Modules/Minecraft/ModMinecraft.vb
index 0bff379..62f62e3 100644
--- a/Plain Craft Launcher 2/Modules/Minecraft/ModMinecraft.vb	
+++ b/Plain Craft Launcher 2/Modules/Minecraft/ModMinecraft.vb	
@@ -6,7 +6,7 @@ Public Module ModMinecraft
 
     '列表初始化
 
-    Public JavaListCacheVersion As Integer = 1
+    Public JavaListCacheVersion As Integer = 2
     ''' <summary>
     ''' 目前所有可用的 Java。
     ''' </summary>
@@ -175,10 +175,11 @@ Public Module ModMinecraft
                 End If
                 Is64Bit = Output.Contains("64-bit")
                 If Version.Minor <= 4 OrElse Version.Minor >= 25 Then Throw New Exception("分析详细信息失败，获取的版本为 " & Version.ToString)
+                '无论如何不允许使用 JRE 16，它完全是炸的，安 OptiFine、Forge 和启动 MC 都会炸
+                If IsJre AndAlso VersionCode = 16 Then Throw New Exception("由于 JRE 16 对 Minecraft 的兼容性很差，因此不再允许使用")
             Catch ex As Exception
                 Log("[Java] 检查失败的 Java 输出：" & PathFolder & "java.exe" & vbCrLf & If(Output, "无程序输出"))
-                ex = New Exception("检查 Java 详细信息失败（" & If(PathJavaw, "Nothing") & "）", ex)
-                Throw ex
+                Throw New Exception("检查 Java 失败（" & If(PathJavaw, "Nothing") & "）", ex)
             End Try
             IsChecked = True
         End Sub
@@ -457,7 +458,6 @@ RetryGet:
                 If MinVersion IsNot Nothing AndAlso Java.Version < MinVersion Then Continue For
                 If MaxVersion IsNot Nothing AndAlso Java.Version > MaxVersion Then Continue For
                 If Java.Is64Bit AndAlso Is32BitSystem Then Continue For
-                If Java.IsJre AndAlso Java.VersionCode >= 12 Then Continue For '无论如何不允许使用 JRE 12+，它们完全是炸的，安 OptiFine、Forge 和启动 MC 都会炸
                 AllowedJavaList.Add(Java)
             Next
 
diff --git a/Plain Craft Launcher 2/Modules/ModMusic.vb b/Plain Craft Launcher 2/Modules/ModMusic.vb
index 2dbb31e..677edc0 100644
--- a/Plain Craft Launcher 2/Modules/ModMusic.vb	
+++ b/Plain Craft Launcher 2/Modules/ModMusic.vb	
@@ -187,7 +187,8 @@
     ''' </summary>
     Private Sub MusicStartPlay(Address As String, Optional IsFirstLoad As Boolean = False)
         Log("[Music] 播放开始：" & Address)
-        RunInNewThread(Sub() MusicLoop(Address, IsFirstLoad), "Music", ThreadPriority.BelowNormal)
+        MusicCurrent = Address
+        RunInNewThread(Sub() MusicLoop(IsFirstLoad), "Music", ThreadPriority.BelowNormal)
     End Sub
 
     '播放与暂停
@@ -237,15 +238,14 @@
     ''' <summary>
     ''' 在 MusicUuid 不变的前提下，持续播放某地址的音乐，且在播放结束后随机播放下一曲。
     ''' </summary>
-    Private Sub MusicLoop(Address As String, Optional IsFirstLoad As Boolean = False)
-        MusicCurrent = Address
+    Private Sub MusicLoop(Optional IsFirstLoad As Boolean = False)
         Dim CurrentWave As NAudio.Wave.WaveOut = Nothing
         Dim Reader As NAudio.Wave.WaveStream = Nothing
         Try
             '开始播放
             CurrentWave = New NAudio.Wave.WaveOut()
             MusicNAudio = CurrentWave
-            Reader = New NAudio.Wave.AudioFileReader(Address)
+            Reader = New NAudio.Wave.AudioFileReader(MusicCurrent)
             CurrentWave.Init(Reader)
             CurrentWave.Play()
             '第一次打开的暂停
@@ -265,13 +265,13 @@
             If CurrentWave.PlaybackState = NAudio.Wave.PlaybackState.Stopped AndAlso MusicAllList.Count > 0 Then MusicStartPlay(DequeueNextMusicAddress)
         Catch ex As Exception
             If ex.Message.Contains("Got a frame at sample rate") OrElse ex.Message.Contains("does not support changes to") Then
-                Hint("播放音乐失败（" & GetFileNameFromPath(Address) & "）：PCL2 不支持播放音频属性在中途发生变化的音乐", HintType.Critical)
-            ElseIf Not (Address.ToLower.EndsWith(".wav") OrElse Address.ToLower.EndsWith(".mp3") OrElse Address.ToLower.EndsWith(".flac")) Then
-                Hint("播放音乐失败（" & GetFileNameFromPath(Address) & "）：PCL2 可能不支持此音乐格式，请将格式转换为 .wav、.mp3 或 .flac 后再试", HintType.Critical)
+                Hint("播放音乐失败（" & GetFileNameFromPath(MusicCurrent) & "）：PCL2 不支持播放音频属性在中途发生变化的音乐", HintType.Critical)
+            ElseIf Not (MusicCurrent.ToLower.EndsWith(".wav") OrElse MusicCurrent.ToLower.EndsWith(".mp3") OrElse MusicCurrent.ToLower.EndsWith(".flac")) Then
+                Hint("播放音乐失败（" & GetFileNameFromPath(MusicCurrent) & "）：PCL2 可能不支持此音乐格式，请将格式转换为 .wav、.mp3 或 .flac 后再试", HintType.Critical)
             Else
-                Log(ex, "播放音乐失败（" & GetFileNameFromPath(Address) & "）", LogLevel.Hint)
+                Log(ex, "播放音乐失败（" & GetFileNameFromPath(MusicCurrent) & "）", LogLevel.Hint)
             End If
-            Log(ex, "播放音乐失败（" & Address & "）", LogLevel.Developer)
+            Log(ex, "播放音乐失败（" & MusicCurrent & "）", LogLevel.Developer)
             If MusicAllList.Count > 1 Then
                 Thread.Sleep(1000)
                 MusicStartPlay(DequeueNextMusicAddress)
diff --git a/Plain Craft Launcher 2/My Project/AssemblyInfo.vb b/Plain Craft Launcher 2/My Project/AssemblyInfo.vb
index 62dbd42..55ed05c 100644
--- a/Plain Craft Launcher 2/My Project/AssemblyInfo.vb	
+++ b/Plain Craft Launcher 2/My Project/AssemblyInfo.vb	
@@ -51,6 +51,6 @@ Imports System.Runtime.InteropServices
 ' 可以指定所有值，也可以使用以下所示的 "*" 预置版本号和修订号
 ' 方法是按如下所示使用“*”
 
-<Assembly: AssemblyVersion("2.4.6.0")>
-<Assembly: AssemblyFileVersion("2.4.6.0")>
+<Assembly: AssemblyVersion("2.4.7.0")>
+<Assembly: AssemblyFileVersion("2.4.7.0")>
 <Assembly: NeutralResourcesLanguage("")>