Editor - {{embed}} section doesn't work

[alexwarren]

This sample from https://squiffystory.com/basic-concepts/#embed-text

[[section1]]:
Here is some text from the next section: {{embed "section2"}}

Here is some text from a passage in this section: {{embed "passage"}}

[passage]:
Text from passage.

[[section2]]:
Text from next section.

In the Editor only, the embedded section2 does not appear.