diff --git a/instaloader/__init__.py b/instaloader/__init__.py
index b5d37d9..df79227 100644
--- a/instaloader/__init__.py
+++ b/instaloader/__init__.py
@@ -1,7 +1,7 @@
 """Download pictures (or videos) along with their captions and other metadata from Instagram."""
 
 
-__version__ = '4.3'
+__version__ = '4.3.2'
 
 
 try:
diff --git a/instaloader/instaloadercontext.py b/instaloader/instaloadercontext.py
index 24305b0..b1458ff 100644
--- a/instaloader/instaloadercontext.py
+++ b/instaloader/instaloadercontext.py
@@ -113,7 +113,7 @@ class InstaloaderContext:
     def close(self):
         """Print error log and close session"""
         if self.error_log and not self.quiet:
-            print("\nErrors occured:", file=sys.stderr)
+            print("\nErrors occurred:", file=sys.stderr)
             for err in self.error_log:
                 print(err, file=sys.stderr)
         self._session.close()
@@ -349,7 +349,7 @@ class InstaloaderContext:
             else:
                 self._graphql_query_timestamps[query_hash].append(time.monotonic())
         else:
-            text_for_429 = ("HTTP error code 429 was returned because too many queries occured in the last time. "
+            text_for_429 = ("HTTP error code 429 was returned because too many queries occurred in the last time. "
                             "Please do not use Instagram in your browser or run multiple instances of Instaloader "
                             "in parallel.")
             print(textwrap.fill(text_for_429), file=sys.stderr)
diff --git a/instaloader/structures.py b/instaloader/structures.py
index 87d9fba..bd00d80 100644
--- a/instaloader/structures.py
+++ b/instaloader/structures.py
@@ -139,6 +139,12 @@ class Post:
             pic_json = self._context.get_json("p/{0}/".format(self.shortcode), params={})
             self._full_metadata_dict = pic_json['entry_data']['PostPage'][0]['graphql']['shortcode_media']
             self._rhx_gis_str = pic_json.get('rhx_gis')
+            if self._full_metadata_dict is None:
+                # issue #449
+                self._context.error("Fetching Post metadata failed (issue #449). "
+                                    "The following data has been returned:\n"
+                                    + json.dumps(pic_json['entry_data'], indent=2))
+                raise BadResponseException("Fetching Post metadata failed.")
             if self.shortcode != self._full_metadata_dict['shortcode']:
                 self._node.update(self._full_metadata_dict)
                 raise PostChangedException
@@ -229,7 +235,11 @@ class Post:
     def get_sidecar_nodes(self) -> Iterator[PostSidecarNode]:
         """Sidecar nodes of a Post with typename==GraphSidecar."""
         if self.typename == 'GraphSidecar':
-            for edge in self._field('edge_sidecar_to_children', 'edges'):
+            edges = self._field('edge_sidecar_to_children', 'edges')
+            if any(edge['node']['is_video'] for edge in edges):
+                # video_url is only present in full metadata, issue #558.
+                edges = self._full_metadata['edge_sidecar_to_children']['edges']
+            for edge in edges:
                 node = edge['node']
                 is_video = node['is_video']
                 yield PostSidecarNode(is_video=is_video, display_url=node['display_url'],