Android : New inserted contact disappears after 30 sec

I am trying to insert new contact into the android contacts database on API 19 (KITKAT) into Google contacts account. I use basically the same code as in documentation without any custom fields: https://developer.android.com/guide/topics/providers/contacts-provider.html#Access

The problem is - new inserted contact disappears from Contacts after about 30 seconds or so. I suspect the problem is with sync adapter, but I do not understand the cause.

There seems to be similar question, still without answer - kitkat (API 19) inserting contact?