I have nextcloud installed and it seems that I have an issue syncing some contacts.
I am able to sync about 200 of the 1425 contacts that are available in my Nextcloud Contacts App.
I used to use etesync.com and they all sync just fine.
Things I have done to trouble shoot. I have deleted all contacts and apps on both ends and reinstalled everything. I have made sure that davdroid has the option to sync address book and that it is not setup for battery optomizations.
I am not sure why some contacts are pulled in but others are not. If anyone has any ideas on where to start first that would be great.