This issue can occur if a user makes changes to a product description but doesn’t see the edits after saving.
Ensure that you’ve followed Step 6 of the install guide and ticked Products within
Elementor > Settings.
The demo data content was built with Elementor so any demo data product description content needs to be edited with that.
If you’d prefer to use the regular editor, and not Elementor for these. It’d be simpler to just delete the demo products. and create new ones from scratch.