Multiple hreflang errors

Hi, I have the following hreflang errors with Polylang on thousands of pages on my website:

• Missing reciprocal hreflang (no return-tag)
• Self-reference hreflang annotation missing
• Hreflang to non-canonical
• X-default hreflang annotation missing

Links crawled and errors signaled by ahrefs site audit.
Also found by semrush website audit, but on a lower number of pages, because their free version only crawls 100 URLs.
Also identified by Website auditor v4.49.7
(Links to screenshots at the end of this message)

Permalink settings

• Common Settings: https://www.the-travel-bunny.com/sample-post/
• Optional:
  – Product category base product-category
  – Product tag base product-tag
• Product permalinks: Custom base /product/

I am using a static front page.

Polylang settings

• URL modifications
  – The language is set from the directory name in pretty permalinks
  – Hide URL language information for default language
  – Remove /language/ in pretty permalinks
  – The front page url contains the language code instead of the page name or page id
• Detect browser language deactivated
• Media activated
• Custom post types and Taxonomies
  – Custom post types: Products
  – Custom taxonomies: Brands, Product categories, Product tags, Product shipping classes
• Synchronization: Published date
• WPML compatibility activated by default (no option to select otherwise)

Link to my site: https://www.the-travel-bunny.com/

I made sure WordPress, theme, Polylang, and all other plugins are the latest versions.
I didn’t find an answer on the forum, but several have reported the same issue and nobody answered.
I deactivated other plugins and switched to the default WordPress theme. Problem persisted.

Screenshots:
Ahrefs: https://prnt.sc/10sytv8
Semrush: https://prnt.sc/10syu4c
Website Auditor: https://prnt.sc/10syvw5

• This topic was modified 3 years ago by The Travel Bunny.