advent calendar limited to 20 days

Why am I limited to 20 days in my advent calendar when the file size doesn't exceed the limit?

Hi Julien,
Can you send the link to your calendar to philipp@pollunit.com?
Then I can have a look.
Kind regards
Philipp

Sorry, It's working now.
When I started the calendar, I thought I had selected the Advent calendar dates. But it turned out to only be about twenty days. So then I was stuck trying to add more days. By going back to the global settings, I re-selecting my date range from December 1st to 24th, and it worked.

Ok, great it worked in the end!
Have a nice day!