diff --git a/telethon/client/chats.py b/telethon/client/chats.py
index 64f60d5d..e6b2fc25 100644
--- a/telethon/client/chats.py
+++ b/telethon/client/chats.py
@@ -218,8 +218,10 @@ class _ParticipantsIter(RequestIter):
         self.requests.offset += len(participants.participants)
         users = {user.id: user for user in participants.users}
         for participant in participants.participants:
-
-            if isinstance(participant, types.ChannelParticipantBanned):
+            if isinstance(participant, types.ChannelParticipantLeft):
+                # See issue #3231 to learn why this is ignored.
+                continue
+            elif isinstance(participant, types.ChannelParticipantBanned):
                 if not isinstance(participant.peer, types.PeerUser):
                     # May have the entire channel banned. See #3105.
                     continue
diff --git a/telethon/tl/custom/message.py b/telethon/tl/custom/message.py
index 7b03a054..a0b9c297 100644
--- a/telethon/tl/custom/message.py
+++ b/telethon/tl/custom/message.py
@@ -176,8 +176,7 @@ class Message(ChatGetter, SenderGetter, TLObject):
             self,
             id: int, peer_id: types.TypePeer,
             date: Optional[datetime]=None, message: Optional[str]=None,
-            # Copied from Message.__init__ signature
-            out: Optional[bool]=None, mentioned: Optional[bool]=None, media_unread: Optional[bool]=None, silent: Optional[bool]=None, post: Optional[bool]=None, from_scheduled: Optional[bool]=None, legacy: Optional[bool]=None, edit_hide: Optional[bool]=None, pinned: Optional[bool]=None, noforwards: Optional[bool]=None, invert_media: Optional[bool]=None, offline: Optional[bool]=None, video_processing_pending: Optional[bool]=None, from_id: Optional[types.TypePeer]=None, from_boosts_applied: Optional[int]=None, saved_peer_id: Optional[types.TypePeer]=None, fwd_from: Optional[types.TypeMessageFwdHeader]=None, via_bot_id: Optional[int]=None, via_business_bot_id: Optional[int]=None, reply_to: Optional[types.TypeMessageReplyHeader]=None, media: Optional[types.TypeMessageMedia]=None, reply_markup: Optional[types.TypeReplyMarkup]=None, entities: Optional[List[types.TypeMessageEntity]]=None, views: Optional[int]=None, forwards: Optional[int]=None, replies: Optional[types.TypeMessageReplies]=None, edit_date: Optional[datetime]=None, post_author: Optional[str]=None, grouped_id: Optional[int]=None, reactions: Optional[types.TypeMessageReactions]=None, restriction_reason: Optional[List[types.TypeRestrictionReason]]=None, ttl_period: Optional[int]=None, quick_reply_shortcut_id: Optional[int]=None, effect: Optional[int]=None, factcheck: Optional[types.TypeFactCheck]=None, report_delivery_until_date: Optional[datetime]=None,  paid_message_stars: Optional[int]=None,
+            out: Optional[bool]=None, mentioned: Optional[bool]=None, media_unread: Optional[bool]=None, silent: Optional[bool]=None, post: Optional[bool]=None, from_scheduled: Optional[bool]=None, legacy: Optional[bool]=None, edit_hide: Optional[bool]=None, pinned: Optional[bool]=None, noforwards: Optional[bool]=None, invert_media: Optional[bool]=None, offline: Optional[bool]=None, video_processing_pending: Optional[bool]=None, from_id: Optional[types.TypePeer]=None, from_boosts_applied: Optional[int]=None, saved_peer_id: Optional[types.TypePeer]=None, fwd_from: Optional[types.TypeMessageFwdHeader]=None, via_bot_id: Optional[int]=None, via_business_bot_id: Optional[int]=None, reply_to: Optional[types.TypeMessageReplyHeader]=None, media: Optional[types.TypeMessageMedia]=None, reply_markup: Optional[types.TypeReplyMarkup]=None, entities: Optional[List[types.TypeMessageEntity]]=None, views: Optional[int]=None, forwards: Optional[int]=None, replies: Optional[types.TypeMessageReplies]=None, edit_date: Optional[datetime]=None, post_author: Optional[str]=None, grouped_id: Optional[int]=None, reactions: Optional[types.TypeMessageReactions]=None, restriction_reason: Optional[List[types.TypeRestrictionReason]]=None, ttl_period: Optional[int]=None, quick_reply_shortcut_id: Optional[int]=None, effect: Optional[int]=None, factcheck: Optional[types.TypeFactCheck]=None, report_delivery_until_date: Optional[datetime]=None, paid_message_stars: Optional[int]=None,
             # Copied from MessageService.__init__ signature
             action: Optional[types.TypeMessageAction]=None, reactions_are_possible: Optional[bool]=None
     ):
diff --git a/telethon/utils.py b/telethon/utils.py
index 8f21df17..84a9cd5a 100644
--- a/telethon/utils.py
+++ b/telethon/utils.py
@@ -499,6 +499,14 @@ def get_input_media(
     if isinstance(media, types.MessageMediaGeo):
         return types.InputMediaGeoPoint(geo_point=get_input_geo(media.geo))
 
+    if isinstance(media, types.MessageMediaGeoLive):
+        return types.InputMediaGeoLive(
+            geo_point=get_input_geo(media.geo),
+            period=media.period,
+            heading=media.heading,
+            proximity_notification_radius=media.proximity_notification_radius,
+        )
+
     if isinstance(media, types.MessageMediaVenue):
         return types.InputMediaVenue(
             geo_point=get_input_geo(media.geo),