GroupWise 2012 SP 2 on OES 11 sp1 Sles 11 SP2

I have published a calendar of Swedish holidays for next year 2014.

But when I look at the calendar from my subscription just appears holidays within 6 months, not those holidays that is later than 6 months from todays date.

From the groupwise client where I published the calender with all holidays I can see all of them, the hole year.

So I can place appointments within 6 months from today's date displayed in the published calendar, but not after 6 months!

Is there a time limit, can I then set the limit?
Or is there something else wrong?