Calendar Provider Wakelock - eating my battery

Hi all,

after upgrading from s-rom to Leedroid im experiencing severe Wakelock concerning the calendar storage apk.
I've added a Screenshot from Gsam in the attachments.
I've reinstalled Leedroid and other Roms already, deleted my calendar history, disabled sync with Google calendar, but nothting fixed the Problem.

Dies anyone has a solution? Google doesnt bring up much...

ScheduleNextAlarmWakelock_5

Thanks already!

Attached Thumbnails