In some cases, you could possibly accidentally noindex a few choice pages you’ve referenced as part of your hreflang tags. When this comes about, search engines like yahoo gained’t Adhere to the tag to the webpage and gained’t Adhere to the return link about the webpage that references the alternative https://addons.prestashop.com/nl/seo-zoekmachineoptimalisatie-vermelding/31857-automatische-google-rich-snippets-json-ld-opengraph-seo.html