Welcome, @manghig! Please take a moment to introduce yourself when you have a moment so that we can learn a bit more about your projects.
That is correct. Are you absolutely sure you don't have a typo in the repeat_count column name? If you don't, please share the simplest possible form that reproduces the behavior you are experiencing and let us know how you are converting your form from XLSForm (e.g. XLSForm Online).