Help with Competiotn

Hi there, I created a 4 team (2 Belgian, 2 Dutch) pre season competition with the advanced rules. When It is loaded, it messes up the fixture schedules in Belgium, creating a fixture congestion in January whilst almost not scheduling any fixtures for November and December (2 in Nov, 0 in Dec). I know there is a mid winter break from 26/12 to 16/01. Any help to fix this would be gratefully appreciated. Cheers.