Default [Q] 4.4.2 S Calendar buggy?

After i upgraded to 4.4.2 First time, XEO edition and now NEE. I have had the problems with calendar appointments appearing all day long with a 15min interval, where on 4.3 it only happened 1 time, when dismissed it never appeared again.

Now i can chose dismiss, and the event happens 15/30 minutes later again. Anyone else seen this with Exchange and Gmail events? anyone found a solution?
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