Message Backfill stops due to Error "unknown component type: 16"

[SirBerg]

Hey there! Love the project :)
I'm getting this error when trying to backfill messages from DMs:

2026-02-15T16:56:08Z DBG Fetching messages for backfill action="initial backfill" before_id=<id-can-provide-if-needed> channel_id=<channel-id> channel_receiver=<channel-id> limit=10000000 room_id=<room-id>
2026-02-15T16:56:09Z ERR Error collecting messages to forward backfill error="json unmarshal: unknown component type: 16" action="initial backfill" channel_id=<channel-id> channel_receiver=<channel-id> limit=10000000 room_id=<room-id>

After that there are no more backfill messages, so the backfill just stops. Could someone point me in the right direction if this is a config issue?
These appear after I've bridge the channels via !discord create-portal
I've not had this issue using a bot account and bridging + backfilling guilds, only in a DM and that same Bridge version did not have this issue when running on x86 (I don't think it's Arch dependent but wanted to include that)
Bridge info:

• Version: 0.7.5 and latest
• DB Provider: Postgres
• Homeserver: Continuwuity
• System Arch: arm64 and the bridge is running in Docker

[j3553a]

This also occurs with a json unmarshal: unknown component type: 20. Which I believe is tied to CHAT_INPUT_COMMAND

https://docs.discord.com/developers/resources/message

I don't believe your config is invalid. My understanding is this has to do with the upstream discordgo not being able to parse specific message types.