I have installed DavDROID 1.9.5-ose on a Xiaomi Redmi Note 4 with MIUI 9 which is basically Android 7.0.
I have previously installed the same version on several LineageOS 14.1 phones.
On the LineageOS phones, everything works as expected. After configuring my OwnCloud server account in DavDROID I see my CalDAV calendars in various calendar apps such as Google Calendar. I also see my CardDAV contact in the Google Contacts app.
Following the exact same steps on the Xiaomi phone though the configured CalDAV calendars are not showing up in any calendar apps including Google Calendar. Either are contacts showing up.
Looking in DavDROID’s Debug info I can see that {READ,WRITE}_{CONTACTS,CALENDAR} have all been granted.
Any ideas why none of these are being seen by the Xiaomi phone?