Mi Control hub (Mijia/xiaomi) and non-chinese voice prompts

I’ve noticed in the most recent Mi Home app (5.5.21 at the moment) now offers a Mi Control Hub setting of “Language of Voice Prompt”, which includes English.

I can set it, but it doesn’t seem to stay set.

Anyone know anything?

Got the same issue Jon did you manage to sort it out?

nope - its still there in later versions, but never found a way to make it work.