The onChannelChanged not triggered at all when changing custom type even though from the doc said supported https://docs.sendbird.com/android/sync_manager_channel_sync
onChannelChanged - One of the following group channel properties has been changed: distinct, push notification preferences, last message (excluding silent admin messages), unread message count, name, cover image, data, or custom type. If the collection doesn’t have the channel in the channel list, an insert event is given instead of update . If the property change affects the order of the channel list, the move event is also invoked.
Is this a bug from the Android SDK?