Search contacts in russian keyboard layout

We have some problem with searching contacts, which use russian letters in name, it works in desktop client and doesn’t work in mobile client
We use latest verison server and clients

I’ve had this app for months and liked it, but now there are too many adverts. When you can’t see what you’re writing because an add is in the way, it’s time to delete. There’s no good having cool t-shirts if you have to keep removing the keyboard to see what you’re writing.
Showbox Tutuapp

Search in Directory works with Cyrillic symbols.