New WHS - scores not showing as counted

Hi
I am new to golf and have a new handicap from my 1st 54 holes (6x9) and have played 2 more 9 holes since then, but only one score is showing as "counted" when I thought 7-8 rounds used the average of the best 2? Can anyone explain why only one score is shown as counted? Does a round need to be 18 for example?