[CalendarServer-users] First request ignored

Hey everybody, I've setup calendarserver 3.2 on my debian wheezy using the filesystem as storage. Every time I add a new appointment to my calendar in iCal and give it a Name, after the next sync with the Server it reverts to the old name ("new Event"). It seems like just the second change will be actually changed on the server. Same Behavior when I change the time. And I also need to delete every appointment two times. I attached the access.log file, there you can clearly see that the server gets a GET request right after deletion and I need to delete the appointment a second time. Hope you can help me out Ulrich Fourier