Multilingual site and double from Yandex. Is it about matching META descriptions?

Question

Search Engine Optimization

Hello! I have a bilingual wordpress site with qTranslate X and Yoast SEO plugins.
Two versions of the main page, with different content in two languages. The other day, Yandex marked the RU version of the site as a duplicate of the main, English version. The tags on the pages are:

<link hreflang="en" href="https://site.com/en/" rel="alternate" />
<link hreflang="ru" href="https://site.com/ru/" rel="alternate" />
<link hreflang="x-default" href="https://site.com/" rel="alternate" />

Could Yandex have added the Russian version to the duplicates because the META descriptions of the EN and RU versions are the same? The qTranslate X plugin does not work with Yoast SEO and the description is the same for both language versions.

Answer 1

If you have the main version in English, then it should be written like this:

<link hreflang="x-default" href="https://site.com/" rel="alternate" />
<link hreflang="ru" href="https://site.com/ru/" rel="alternate" />

-Theoretically, yes, of course, you should first deal with the description, and look further. It would be easier to answer the question if you show at least screenshots of the ru and eng versions.