Not all selectable fonts render in the response window

Some of the fonts available to be selected in the font selection, appear not to be used to render in the response window, defaulting back to Jetbrains Mono.

Here is the response window:

If I paste the same content into Sublime Text for example, which I also have configured to use IBM Plex Mono, it looks like:

If I choose Cascadia Mono Light for example, this renders fine:

However, if I choose Cascadia Mono SemiLight, it renders using the default font. These again render fine in the likes of Sublime Text or Jetbrains IDEs etc