I have problems with syncing my android-phone-calendar with my ownCloud calendar.
Thunderbird Lightning (latest version), 3 calendars, syncing with ownCloud works correctly
Android 7.1.1: 2 of the calendars are synced with the cellphone correctly, one of my calendars is not synced except I type the event in the phone, then it is synced with ownCloud and lightning.
As calendar-app I use aCalendar, but the events from ownCloud don't appear in the standard-calendar-app as well.
All of my 3 calendars are listed correctly in the DAVdroid-app and in the calendar-app.
Several clear installations didn't help, even a reset of the whole phone had no effects.
Are there any further suggestions?