diff --git a/LaunchServer/source/response/ResponseThread.java b/LaunchServer/source/response/ResponseThread.java
index ac8e2e9..f2a1050 100644
--- a/LaunchServer/source/response/ResponseThread.java
+++ b/LaunchServer/source/response/ResponseThread.java
@@ -76,7 +76,7 @@
         catch (Throwable exc)
         {
             savedError = exc;
-            LogHelper.error(exc);
+            if (LogHelper.isDebugEnabled()) LogHelper.error(exc);
         }
         finally
         {
@@ -100,6 +100,7 @@
             { // Previous launcher protocol
                 output.writeBoolean(false);
                 if (LogHelper.isDebugEnabled()) throw new IOException(String.format("#%d Protocol magic mismatch", id));
+                return null;
             }
             legacy = true;
         }
@@ -110,6 +111,7 @@
         {
             output.writeBoolean(false);
             if (LogHelper.isDebugEnabled()) throw new IOException(String.format("#%d Key modulus mismatch", id));
+            return null;
         }
 
         // Read request type
@@ -118,6 +120,7 @@
         {
             output.writeBoolean(false);
             if (LogHelper.isDebugEnabled()) throw new IOException(String.format("#%d Not LAUNCHER request on legacy protocol", id));
+            return null;
         }
         if (!server.serverSocketHandler.onHandshake(id, type))
         {
diff --git a/Launcher/source/Launcher.java b/Launcher/source/Launcher.java
index ebb218e..1de1fba 100644
--- a/Launcher/source/Launcher.java
+++ b/Launcher/source/Launcher.java
@@ -59,7 +59,7 @@
 {
     // Version info
     @LauncherAPI
-    public static final String VERSION = "1.7.2.1";
+    public static final String VERSION = "1.7.2.2";
     @LauncherAPI
     public static final String BUILD = readBuildNumber();
     @LauncherAPI
diff --git a/buildnumber b/buildnumber
index cf54904..068afe4 100644
--- a/buildnumber
+++ b/buildnumber
@@ -1 +1 @@
-535, 24.03.2021
\ No newline at end of file
+538, 24.03.2021
\ No newline at end of file