SimpleCove coverage not coming for only some models

Question

I am having very weird issue with simple cov and rspec. I have following in my rails_hlper file

require 'simplecov'

SimpleCov.start 'rails' do
  add_filter "app/helpers/"
  add_filter "app/models/concerns/"
  add_group 'Models', 'app/models'
end

Even if try to run that model's spec its not showing in coverage report.

Answer 1

Fixed by moving above code to top of the rails_helper.rb file