This is about the Kagi translate app version. I couldn't tell if it's a bug or by design, but when I have the translation mode set to Best and press the language swap button, it reverts back to Standard.
In the browser version, I was able to lock the translation mode, so I thought it would be the same in the app version. Regardless of whether this is a bug or by design, it's a pain to have to reset it every single time, so I hope there's some kind of improvement.