Multi-paragraph footnote rendered as code block in editor

Two part alternative:

  1. Using a CSS snippet, set embeds to be flush with other note text and remove the embed header. (Example in this forum comment.)

  2. Draft your multi-line footnote as a separate note, then embed this in place of your footnote.

Example screenshots
Live Preview mode, Editing View

Source mode, Editing View
image

All modes, Reading View