Hello,
I completely reinstalled my Mi5S and have installed 9.2.21 on it. Before my reinstall, my calendar widget worked perfectly (I don't remember on which version, but probably 9.2.something).
I have a bit of the same problem on this version that widgets (external calendar widget) do not get refreshed after a night. The widget works, gets refreshed, but after night, it is just empty, does not refresh anymore and I cannot even access the configuration anymore. I have to reboot the phone or remove the widget and re-add it. I have excluded the calendar app from the MIUI battery saver, I have disabled the auto clear cache.
Are there any other options I can consider ? Does anybody still has the same problem on 9.2.21?