It is a bug in the app. There is no update. If you see the version shown, it is the same version you already have installed. If you close the Updates app and reopen it, the update disappears.
Inviato dal mio 23127PN0CG utilizzando Tapatalk
I saw that the ROM is all flashed to slot a. Could it be done on slot b as well? With fastboot getvar all I saw that slot b is not bootable, but how is it structured? My goal is to have both slots with the same ROM.
https://xiaomi.eu/community/threads/xiaomieu-module-app.70890/post-727535
Download the apk and install. You can also do this from the Updates app.
After installing delete of Play Services data and restart the phone.