Incorrect canonical picked up by All In SEO and various social media plugins

I tried to debug why I’m no longer seeing language versions in Google search and found at least one issue. When I use QTS with All In 1 SEO and also other social media sharing plugins for open graph etc etc, the correct canonical is only showed for the default language, for other languages the canonical is shown as site.com/en/default_language_slug instead of site.com/en/english_language_slug.

I also get a spurious 301 redirect for the main page, could this be generated by QTS? The redirect is a “Null” redirect so it redirects from https::/site.com/en to https::/site.com/en (ie the exact same address)