Multilingual menu bug

Hugo 0.27.1, a simple multilingual site with a simple theme. Cannot create any menus - even the example in documentation doesn’t work!

A workaround is to place sectionPagesMenu = "main" into config.toml, but that doesn’t solve the issue completely, as it is still impossible to create customized menus.

P. S. The same issue has been documented here:

I don’t want to necro that post, so I’ll just link it here.