history() wrote "media": null for streaming finals, but the frame schema says array. The app's HistoryMessage.media was non-nullable, so deserialization threw and every history page was silently dropped. Omit the key when media is absent instead.
history() wrote "media": null for streaming finals, but the frame schema says array. The app's HistoryMessage.media was non-nullable, so deserialization threw and every history page was silently dropped. Omit the key when media is absent instead.