All contacts suddenly stopped showing in native contact app

[tzugen]

I am happily using Etesync for about two years. Suddenly I noticed yesterday that on my phone a large number of contacts have disappeared. First I was a bit panicked, but the Web interface showed them all still there.

In the native contact app in the left hand drawer I have "Contacts on this device" and "Etesync contacts". The category Etesync is simply empty, even though the Etesync app itself syncs happy, and its changelog shows all relevant entries...

What to do?

[tasn]

EteSync doesn't lose data. What could be is that Android, for whatever reason, decided to wipe a contact list. Easiest (but annoying) solution is to remove and then re-add the EteSync account from the EteSync app.