diff --git a/lib/Video/Adapter/Ffmpeg.php b/lib/Video/Adapter/Ffmpeg.php
index dd84bec9801..1d18ac4edbf 100644
--- a/lib/Video/Adapter/Ffmpeg.php
+++ b/lib/Video/Adapter/Ffmpeg.php
@@ -37,6 +37,11 @@ class Ffmpeg extends Adapter
      */
     protected $arguments = [];
 
+    /**
+     * @var array
+     */
+    private $tmpFiles = [];
+
     /**
      * @return bool
      */
@@ -72,6 +77,16 @@ public static function getFfmpegCli()
      */
     public function load($file)
     {
+        if (!stream_is_local($file)) {
+            // Create local copy of remote file
+            $tmpFile = PIMCORE_SYSTEM_TEMP_DIRECTORY . '/ffmpeg-tmp-' . uniqid() . '.' . File::getFileExtension($file);
+            recursiveCopy($file, $tmpFile);
+
+            $file = $tmpFile;
+
+            $this->tmpFiles[] = $tmpFile;
+        }
+
         $this->file = $file;
         $this->setProcessId(uniqid());
 
@@ -229,6 +244,10 @@ public function destroy()
             Logger::debug("FFMPEG finished, last message was: \n" . file_get_contents($this->getConversionLogFile()));
             $this->deleteConversionLogFile();
         }
+
+        foreach ($this->tmpFiles as $tmpFile) {
+            @unlink($tmpFile);
+        }
     }
 
     public function deleteConversionLogFile()
diff --git a/lib/helper-functions.php b/lib/helper-functions.php
index f07dd48d630..b6e12acde0b 100644
--- a/lib/helper-functions.php
+++ b/lib/helper-functions.php
@@ -455,14 +455,14 @@ function recursiveCopy($source, $destination)
             if ($item->isDir()) {
                 \Pimcore\File::mkdir($destination . DIRECTORY_SEPARATOR . $iterator->getSubPathName());
             } else {
-                copy($item, $destination . DIRECTORY_SEPARATOR . $iterator->getSubPathName());
+                copy($item, $destination . DIRECTORY_SEPARATOR . $iterator->getSubPathName(), \Pimcore\File::getContext());
             }
         }
     } elseif (is_file($source)) {
         if (is_dir(dirname($destination))) {
             \Pimcore\File::mkdir(dirname($destination));
         }
-        copy($source, $destination);
+        copy($source, $destination, \Pimcore\File::getContext());
     }
 
     return true;
diff --git a/models/Asset/Video.php b/models/Asset/Video.php
index b7290d388c9..9592573cab3 100644
--- a/models/Asset/Video.php
+++ b/models/Asset/Video.php
@@ -193,7 +193,9 @@ protected function getDurationFromBackend(?string $filePath = null)
             $converter = \Pimcore\Video::getInstance();
             $converter->load($filePath);
 
-            return $converter->getDuration();
+            $duration = $converter->getDuration();
+            $converter->destroy();
+            return $duration;
         }
 
         return null;
@@ -210,7 +212,9 @@ protected function getDimensionsFromBackend()
             $converter = \Pimcore\Video::getInstance();
             $converter->load($this->getFileSystemPath());
 
-            return $converter->getDimensions();
+            $dimensions = $converter->getDimensions();
+            $converter->destroy();
+            return $dimensions;
         }
 
         return null;
diff --git a/models/Asset/Video/ImageThumbnail.php b/models/Asset/Video/ImageThumbnail.php
index 44911c756f5..117f9a85cf3 100644
--- a/models/Asset/Video/ImageThumbnail.php
+++ b/models/Asset/Video/ImageThumbnail.php
@@ -176,10 +176,23 @@ public function generate()
                     Model\Tool\Lock::release($lockKey);
                 }
 
+                $converter->destroy();
+
                 if ($this->getConfig()) {
                     $this->getConfig()->setFilenameSuffix('time-' . $timeOffset);
 
                     try {
+                        // The path can be remote. In that case, the processor will create a local copy of the asset, which is the video itself.
+                        // That is not what is intended, as we are tying to generate a thumbnail based on the already existing video still that
+                        // the converter created earlier. To prevent the processor from doing that, we will create a local copy here if needed
+                        $tmpFile = null;
+                        if (!stream_is_local($path)) {
+                            $tmpFile = PIMCORE_SYSTEM_TEMP_DIRECTORY . '/video-thumbnail-' . uniqid() . '.png';
+
+                            recursiveCopy($path, $tmpFile);
+                            $path = $tmpFile;
+                        }
+
                         $path = Image\Thumbnail\Processor::process(
                             $this->asset,
                             $this->getConfig(),
@@ -188,6 +201,10 @@ public function generate()
                             true,
                             $generated
                         );
+
+                        if ($tmpFile) {
+                            @unlink($tmpFile);
+                        }
                     } catch (\Exception $e) {
                         Logger::error("Couldn't create image-thumbnail of video " . $this->asset->getRealFullPath());
                         Logger::error($e);