Figure Not Supported in ANSI Format
writer
Figure elements cannot be rendered in ANSI terminal output.
Q-3-53 — Figure Not Supported in ANSI Format
Figure elements cannot be rendered in ANSI terminal output.
What this means
A figure is an image (or a group of images) with an attached caption. The ANSI writer (used when rendering to a terminal) does not render figures: a terminal cannot display the image, and printing only the caption would lose the relationship between caption and content.
Why this happens
Your document contains a figure block — either a Pandoc-style
 paragraph promoted to a figure, or an
explicit ::: figure fenced div — and you rendered to ANSI
output.
How to fix
Render to a different format. If you do want a terminal-friendly
view that mentions the figure, render to markdown (--to qmd)
or strip the figures with a filter before sending the AST to the
ANSI writer.