When creating a new DM, recipient does not get the message that created the DM

[gabrc52]

Steps to reproduce

1. Send a message to someone you don't have an existing Facebook chat with
2. Send a second message

Expected result

They get both messages

Actual result

They only get the second message, in particular, the message after the "Portal to private chat created." notice.

Screenshots

My recipient didn't get the first message:

Logs

Oct 08 18:45:30 uplink python[190413]: [2023-10-08 18:45:30,300] [DEBUG@mau.as] Handling transaction 446514 with 1 EDUs
Oct 08 18:45:30 uplink python[190413]: [2023-10-08 18:45:30,300] [DEBUG@mau.as] Finished handling transaction 446514
Oct 08 18:45:30 uplink python[190413]: [2023-10-08 18:45:30,301] [INFO@aiohttp.access] 127.0.0.1 [08/Oct/2023:18:45:30 +0000] "PUT /_matrix/app/v1/transactions/446514 HTTP/1.1" 200 159 "-" "Synapse/1.93.0"
Oct 08 18:48:43 uplink python[190413]: [2023-10-08 18:48:43,129] [DEBUG@mau.portal.1676243485820522] Handling Facebook event mid.$gAAX0iNmHhmqRQeQOvmLEJ7ATmc0A (/7116856948348800256)
Oct 08 18:48:43 uplink python[190413]: [2023-10-08 18:48:43,572] [DEBUG@mau.as.api.@facebook_REDACTED:matrix.mit.edu] req #744: POST https://matrix-synapse.mit.edu/_matrix/media/v3/upload?filename=379877446_3595302090742534_3891>
Oct 08 18:48:43 uplink python[190413]: [2023-10-08 18:48:43,772] [DEBUG@mau.as.api.@facebook_REDACTED:matrix.mit.edu] req #744 (/_matrix/media/v3/upload) completed in 200.0ms with status 200
Oct 08 18:48:43 uplink python[190413]: [2023-10-08 18:48:43,910] [DEBUG@mau.as.api.@facebook_REDACTED:matrix.mit.edu] req #745: PUT https://matrix-synapse.mit.edu/_matrix/client/v3/rooms/%21rDaNCifqmxQrXEvIxR%3Amatrix.mit.edu/se>
Oct 08 18:48:43 uplink python[190413]: [2023-10-08 18:48:43,982] [DEBUG@mau.as.api.@facebook_REDACTED:matrix.mit.edu] req #745 (/v3/rooms/%21rDaNCifqmxQrXEvIxR%3Amatrix.mit.edu/send/m.room.message/mautrix-python_1696790923910193>
Oct 08 18:48:43 uplink python[190413]: [2023-10-08 18:48:43,982] [DEBUG@mau.portal.1676243485820522] Handled Messenger message mid.$gAAX0iNmHhmqRQeQOvmLEJ7ATmc0A -> ['$F9jyy4WJ8e3VAmvEo1ZvbNtaISCvcE6YnsjkM1df_n8']
Oct 08 18:48:43 uplink python[190413]: [2023-10-08 18:48:43,987] [DEBUG@mau.as.api.bot] req #746: POST https://matrix-synapse.mit.edu/_matrix/client/v3/rooms/%21rDaNCifqmxQrXEvIxR%3Amatrix.mit.edu/read_markers?user_id=@facebookbot:matr>
Oct 08 18:48:44 uplink python[190413]: [2023-10-08 18:48:44,040] [DEBUG@mau.as] Handling transaction 446515 with 1 EDUs
Oct 08 18:48:44 uplink python[190413]: [2023-10-08 18:48:44,041] [DEBUG@mau.as] Finished handling transaction 446515
Oct 08 18:48:44 uplink python[190413]: [2023-10-08 18:48:44,042] [INFO@aiohttp.access] 127.0.0.1 [08/Oct/2023:18:48:44 +0000] "PUT /_matrix/app/v1/transactions/446515 HTTP/1.1" 200 159 "-" "Synapse/1.93.0"
Oct 08 18:48:44 uplink python[190413]: [2023-10-08 18:48:44,067] [DEBUG@mau.as] Handling transaction 446516 with 1 PDUs
Oct 08 18:48:44 uplink python[190413]: [2023-10-08 18:48:44,067] [DEBUG@mau.as] Finished handling transaction 446516

[immanuelfodor]

This is the same for me for a looong time. I usually create the first message from Messenger web as a workaround (I wouldn't do this normally if the bug wasn't there).

[tibu]

Same for me. I usually send a fake 'hello' to open the chat