EPUB export on LO 6.0 doesn't export embedded images

I’ve got a document (.ODT) with about a hundred embedded .png images and exporting to EPUB (LO 6.0 - Windows 10 Home) seems to only export the text. Is this correct or am I missing some way to export the text with the embedded files to a proper epub 3.0 format?

Unless EPUB is a must, consider exporting to FB2 with OOoFBTools.

This has been extremely frustrating for me. Even when saving as .odt and importing into Calibre and using it to convert to .epub causes the image to drop out. I read the blog post. It indicates some simple image handling is available by I don’t know how to achieve a proper end result. Does anyone know how to do it? Specific instructions would be helpful. As for using FB2 with OOoFBTools seems horribly complex. Moreover it is .epub that we want, not something else.

Some of the EPUB export feature has been committed to and only available in the future LibreOffice 6.1 branch. See this blog post from the dev: