Just one issue in Ukrainian and Russian translation. Miui.su uses a patch in their rom which converts hPa to mmHg in Weather app. Xiaomi.eu uses translation of miui.su but does not use this patch. Thus, we can see the pressure in hPa, but it is written "мм.рт.ст" (it means mmHg).
I've written this bug to miui.su forum, but they've answered that they firstly prefer their project, and it doesn't matter what is going on in other projects.