Changing language mode to "Markdown" results in "No renderer found for text/plain"

[JacksonKearl]

I have just one keybinding for creating a new code cell, so to create markdown cells I'd like to create a code cell then switch it's mode to markdown, but doing so results in:

Repo: https://github.com/JacksonKearl/vscode-sonic-pi/

[vscode-triage-bot]

Pinging notebook topic followers: @claudiaregio @rchiodo @greazer @DonJayamanne @jilljac @IanMatthewHuff @tanhakabir @dynamicwebpaige

[sbland]

I have the same issue. I also get this message if I create a markdown cell before the kernal has been attached. Creating a markdown cell with the hotkeys or +markdown button works fine.

[rebornix]

I think this one was already fixed by @mjbvz

[JacksonKearl]

Still present. Can try in github issue notebook.

[rebornix]

@mjbvz can you help take a look?

[claudiaregio]

I am also still reproducing this in the latest version of insiders