I'm using DavDroid 1.9-ose from fdroid, and OpenTasks 1.1.9 from fdroid. ownCloud 10.0.3 (stable) on a lineage 7.1.2 device.
Everything syncs correctly, but not the Tasks.
When I my setup tasks get downloaded but:
- I can create tasks in OpenTasks which don't get uploaded into my ownCloud. After updating these new tasks are lost again.
- Seemingly all calendars get removed and re added to OpenTasks once a sync occure, because when I say OpenTasks not to show the birthday calendar it gets displayed after a sync anyway.