Multilingual alternative title for post thumbnail

Hi,

I have a problem with alt titles of post thumbnails with featured pictures on a home page. On a hover it displays both languages in a long line, e.g. <!–:en–>Home<!–:–><!–:es–>Inicio<!–:–>. How can it be fixed?

Thank you

https://wordpress.org/plugins/qtranslate-xp/