The workaround worked for me too (owncloud 8.1 and davroid 0.8.4).
Exported the contacts from owncloud, removed with a text editor all the @ part in the UUID and then reimported.
ContactsStorageException: Couldn't apply batch operation / Empty values
Only for Google Play – does not apply to other stores:
If you have DAVx⁵ 3.3.3-gplay and get the error ContactsStorageException: Couldn’t apply batch operation / Empty values while synchronization:
This is already fixed in 3.3.4(.1), but at the moment Google Play doesn’t allow us to upload updates. So please message us directly to get the APK.
Thanks, I am unable to install APKs outside the Google store, for security reasons, from my employer. I guess I’ll just wait till the next version drops.
@DigitalBoulevard I see. Unfortunately Google does not tell us when they consider to decide about our “appeal” against the update lock.
Update: The updated APK with the fix is now in Google Play
@rfc2822 thanks so much!