Realm deletes its object periodically when syncing is enabled

[bglgwyng]

Realm deletes its object periodically when syncing is enabled.
I added objects to Realm DB by this code.

realm.write(() => {
  for(const task of tasks) {
    realm.create('Task', task);
  }
});

And useQuery('Task') from @realm/react returns the expected value just after that write.
However, the Task objects begin to diminish.
It looks like Realm periodically delete Task object. It only happens when I turn on the sync.
I don't think this is a bug. What am I missing?

@realm/react: 0.4.0-rc.0
react-native: 0.70.1
realm: 11.0.0-rc.2

[bglgwyng]

I found that this happens when there are problems with syncing.