On the website the language changes after a merge to English

abrogle

Usually I have the familyserach.org website in German and usually it stays in German.
However, after I merged/combined two people together, because they were duplicates, the language automatically changes to English.
If I change in the URL the /en/ to /de/ then it is back to German.
However, if I change the language with "Country and language option" link right at the bottom, I loose the person I'm working on.

Lars van Ravenzwaaij

I have the opposite: I'm also in Germany, but working in english. In my case the website-ui changes from english to german after a merge. This behaviour has defintely changed as it used the stay in the chosen language.

abrogle

could it be, that it reverts to the language of the Windows. That is English for me.
yes before, lets say a few month ago, the language stayed.