Groupings stop images rendering (in VSCode)

[s6mike]

If I add a heading all the images in that section disappear. If I set isGroup: false the images appear again.

See screen recording here:
https://www.awesomescreenshot.com/video/9013541?key=e213a8f5b4127593771186e038500144

argdown file almost identical to the example image agree/disagree code in the documentation.

Running the linux version of VSCode:
Version: 1.67.2
Commit: c3511e6c69bb39013c4a4b7b9566ec1ca73fc4d5
Date: 2022-05-17T18:23:40.286Z
Electron: 17.4.1
Chromium: 98.0.4758.141
Node.js: 16.13.0
V8: 9.8.177.13-electron.0
OS: Linux x64 5.10.106-15290-g6e9d70c8a9b4