Language switch button ON MOBILE & DEKSTOP

@Ziggy if you have a solution when you will have a minute for this it would be amazing! Thanks a lot

You have no Custom CSS here?

You seem to have a -1em right position added, so remove that if you have it or add this to correct it:

.header-actions--right .language-picker-desktop .language-picker-content {
    right: 0em;
}

I don't have any code but just added yours, but it's the same problem :s