.qmd renders to html, but file does not publish correctly in RPubs -- only shows code

There is not code chunk here really to show. It renders fine to html. I use echo: false, so there is no code in the rendered output.
However, the RPubs document that is created only shows the code -- none of the output appears. the background of the published document is gray -- this is not my html.

For Quarto document, you should consider publishing to Quarto Pub or another provider supported directly by the Quarto CLI

Quarto pub is the equivalent of RPub (https://quartopub.com/)