custom ringtone

Hello all! I need some help. I've just updated my phone and I lost my assigned ringtones. When I try to assign them again, it says it's completed but it's not working, all I got is some stupid sound no matter what ringtone I've chosen. I use ringtones from Themes. Any ideas?

I just updated to the latest weekly on Xiaomi Mi11 Venus and facing 2 major issues: 1- Can't use custom ringtones, this issue was fixed in past but I just changed my ringtone today and my phone keeps playing the default ringtone on all incoming phone calls (cellular, WhatsApp, etc) 2- Updater...