diff --git a/package.json b/package.json
index 70e201d..28f761e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "real-debrid-downloader",
-  "version": "1.5.46",
+  "version": "1.5.47",
   "description": "Real-Debrid Downloader Desktop (Electron + React + TypeScript)",
   "main": "build/main/main/main.js",
   "author": "Sucukdeluxe",
diff --git a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$1.class b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$1.class
index aafcd63..fcefae8 100644
Binary files a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$1.class and b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$1.class differ
diff --git a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$Backend.class b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$Backend.class
index f4a5f66..41ca622 100644
Binary files a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$Backend.class and b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$Backend.class differ
diff --git a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$ConflictMode.class b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$ConflictMode.class
index f8f755c..098d94e 100644
Binary files a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$ConflictMode.class and b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$ConflictMode.class differ
diff --git a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$ExtractionRequest.class b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$ExtractionRequest.class
index 8054d68..f2ccd33 100644
Binary files a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$ExtractionRequest.class and b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$ExtractionRequest.class differ
diff --git a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$ProgressTracker.class b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$ProgressTracker.class
index 7e05804..8c1da8f 100644
Binary files a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$ProgressTracker.class and b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$ProgressTracker.class differ
diff --git a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$SevenZipArchiveContext.class b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$SevenZipArchiveContext.class
index b0ca5b9..603dad7 100644
Binary files a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$SevenZipArchiveContext.class and b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$SevenZipArchiveContext.class differ
diff --git a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$SevenZipVolumeCallback.class b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$SevenZipVolumeCallback.class
index cf3672d..10566c8 100644
Binary files a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$SevenZipVolumeCallback.class and b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$SevenZipVolumeCallback.class differ
diff --git a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$WrongPasswordException.class b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$WrongPasswordException.class
index 9836f57..6826c5e 100644
Binary files a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$WrongPasswordException.class and b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain$WrongPasswordException.class differ
diff --git a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain.class b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain.class
index 478934b..ef9eef2 100644
Binary files a/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain.class and b/resources/extractor-jvm/classes/com/sucukdeluxe/extractor/JBindExtractorMain.class differ
diff --git a/resources/extractor-jvm/src/com/sucukdeluxe/extractor/JBindExtractorMain.java b/resources/extractor-jvm/src/com/sucukdeluxe/extractor/JBindExtractorMain.java
index b4cd4c5..413b830 100644
--- a/resources/extractor-jvm/src/com/sucukdeluxe/extractor/JBindExtractorMain.java
+++ b/resources/extractor-jvm/src/com/sucukdeluxe/extractor/JBindExtractorMain.java
@@ -42,6 +42,7 @@ public final class JBindExtractorMain {
     private static final Pattern NUMBERED_ZIP_SPLIT_RE = Pattern.compile("(?i).*\\.zip\\.\\d{3}$");
     private static final Pattern OLD_ZIP_SPLIT_RE = Pattern.compile("(?i).*\\.z\\d{2,3}$");
     private static final Pattern SEVEN_ZIP_SPLIT_RE = Pattern.compile("(?i).*\\.7z\\.001$");
+    private static volatile boolean sevenZipInitialized = false;
 
     private JBindExtractorMain() {
     }
@@ -204,7 +205,16 @@ public final class JBindExtractorMain {
         }
     }
 
+    private static synchronized void ensureSevenZipInitialized() throws Exception {
+        if (sevenZipInitialized) {
+            return;
+        }
+        SevenZip.initSevenZipFromPlatformJAR();
+        sevenZipInitialized = true;
+    }
+
     private static void extractWithSevenZip(ExtractionRequest request, String password) throws Exception {
+        ensureSevenZipInitialized();
         SevenZipArchiveContext context = null;
         try {
             context = openSevenZipArchive(request.archiveFile, password);
@@ -269,7 +279,7 @@ public final class JBindExtractorMain {
                             progress.advance(accounted);
                             return data.length;
                         }
-                    });
+                    }, password == null ? "" : password);
 
                     if (remaining[0] > 0) {
                         progress.advance(remaining[0]);
diff --git a/src/main/extractor.ts b/src/main/extractor.ts
index d763112..b02e2a8 100644
--- a/src/main/extractor.ts
+++ b/src/main/extractor.ts
@@ -1190,10 +1190,15 @@ async function runExternalExtract(
         }
 
         jvmFailureReason = jvmResult.errorText || "JVM-Extractor fehlgeschlagen";
-        if (backendMode === "jvm") {
+        const isUnsupportedMethod = jvmFailureReason.includes("UNSUPPORTEDMETHOD");
+        if (backendMode === "jvm" && !isUnsupportedMethod) {
           throw new Error(jvmFailureReason);
         }
-        logger.warn(`JVM-Extractor Fehler, fallback auf Legacy: ${jvmFailureReason}`);
+        if (isUnsupportedMethod) {
+          logger.warn(`JVM-Extractor: Komprimierungsmethode nicht unterstützt, fallback auf Legacy: ${path.basename(archivePath)}`);
+        } else {
+          logger.warn(`JVM-Extractor Fehler, fallback auf Legacy: ${jvmFailureReason}`);
+        }
       }
     }