Hi Jason,
I investigated a little farther and I found that, weirdly, creating a Text Component doesn’t work for plain text, but update does. For example, the following message:
{ “action”: “update”, “resource”: “component[name]”, “values”: { “text”: “This is some text” } }
I will log a bug about create/textComponent, but you can create, then immediately update as a workaround.
Jonathan