diff --git a/yt_dlp/YoutubeDL.py b/yt_dlp/YoutubeDL.py
index dca355b02..d65d771fc 100644
--- a/yt_dlp/YoutubeDL.py
+++ b/yt_dlp/YoutubeDL.py
@@ -3697,7 +3697,7 @@ class YoutubeDL:
         info['filepath'] = filename
         info = self.run_all_pps('post_process', info, additional_pps=info.get('__postprocessors'))
         info = self.run_pp(MoveFilesAfterDownloadPP(self), info)
-        del info['__multiple_thumbnails']
+        info.pop('__multiple_thumbnails', None)
         return self.run_all_pps('after_move', info)
 
     def _make_archive_id(self, info_dict):
diff --git a/yt_dlp/postprocessor/embedthumbnail.py b/yt_dlp/postprocessor/embedthumbnail.py
index 559fbfd44..cc148ab20 100644
--- a/yt_dlp/postprocessor/embedthumbnail.py
+++ b/yt_dlp/postprocessor/embedthumbnail.py
@@ -226,6 +226,6 @@ class EmbedThumbnailPP(FFmpegPostProcessor):
             info=info)
 
         if not self._already_have_thumbnail:
-            del info['thumbnails'][idx]['filepath']
+            info['thumbnails'][idx].pop('filepath', None)
 
         return [], info
diff --git a/yt_dlp/postprocessor/ffmpeg.py b/yt_dlp/postprocessor/ffmpeg.py
index 3c069c8c6..6492ebe1f 100644
--- a/yt_dlp/postprocessor/ffmpeg.py
+++ b/yt_dlp/postprocessor/ffmpeg.py
@@ -662,6 +662,10 @@ class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
         self.run_ffmpeg_multiple_files(input_files, temp_filename, opts)
         os.replace(temp_filename, filename)
 
+        if not self._already_have_subtitle:
+            for _, subtitle in subtitles.items():
+                subtitle.pop('filepath', None)
+
         files_to_delete = [] if self._already_have_subtitle else sub_filenames
         return files_to_delete, info
 
@@ -698,6 +702,7 @@ class FFmpegMetadataPP(FFmpegPostProcessor):
                 infojson_filename = info.get('infojson_filename')
                 options.extend(self._get_infojson_opts(info, infojson_filename))
                 if not infojson_filename:
+                    info.pop('infojson_filename', None)
                     files_to_delete.append(info.get('infojson_filename'))
             elif self._add_infojson is True:
                 self.to_screen('The info-json can only be attached to mkv/mka files')