Video embed resizes itself right after upload

(#2613) Bug Fixed desktop media

Observed behaviour

There's an odd hiccup where it starts at the wrong aspect ratio and then resizes itself quickly.

Reproduction steps

  1. Download this sample video (ensure you download it, the issue doesn't occur when you embed it from a link): https://fluxerusercontent.com/attachments/1503246268110766141/1503398971739676769/cat.mp4
  2. Add the sample video as an attachment to a message.
  3. Send the message.

Build information

canary build 716 (db94f91), Electron 41.2.2, Windows 11 10.0.26200 (x64), desktop canary 0.0.205, Electron 41.2.2, Chrome 146.0.7680.188, Node 24.14.1, locale en-GB

Platform

Windows

Details

Expected behaviour The uploaded video embed should be the correct aspect ratio as soon as it is uploaded.
Screen_Rec_2026-05-12_00-06-57_1000.webm | 1.1 MB
  1. Rex changed the status from Needs triage to Fixed

2 comments

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Comment by Fullest
FullestReviewer 1 vote
Can reproduce CR: canary build 718 (9cc2c6a), Electron 41.2.2, Linux 7.0.4-100.fc43.x86_64 (x64), desktop canary 0.0.204, Electron 41.2.2, Chrome 146.0.7680.188, Node 24.14.1, locale en-US