It may be new to you that the CDP is granted for the first game started on the GMT day. The last game of the previous day is void now!. More precise, it's granted for the first shot of the first game (mind you that the second player in a MP does not have the first shot and may not get the CDP!)
So you used the pass for the last game of the day => XPs for your CC but no CDP bonus.
Then you played the first game of the next day w/o pass => CDP for you but not for your CC, obviously.
Of course, when your local clock is put forward while GMT isn't, it will appear further behind - no screw up but time zone logic.
But, please, tell me what will be the dire consequences for your L18 CC? Will you miss anything? Me thinks not!
If there's anything of any importance, it may be that you kept your CDP count. You'd lose a lot XPs if you had to start over.