Happens on the Mi Mix 2 as well for me on both 9.1.11.0 and 9.2.5.0. You can fully wipe your phone then re-install the Xiaomi.eu rom and it'll fix it or you can do this if you don't want to wipe everything:
1. Install
Magisk
2. Install '
Root Uninstaller' from the Play Store
3. Use the 'Root Uninstaller' app to uninstall 'Mi Video' then reboot your phone
4. Install the latest 'Mi Video' apk from
here
You can uninstall Magisk from within Magisk Manager after you're done if you don't want to keep your phone rooted.