[horde] ActiveSync: Events twice on mobile

[Lukas Gradl]

Hi!

I've a strange problem with ActiveSync. I'm not shure when this  
problem started to appear, as I normally use only one mobile to edit  
and view my events. I've already upgraded to ActiveSync 2.8.4 and did  
a full resync - but still the same problem.

When sending an event to the mobile it appears two times on the mobile.
I have 2 mobiles synced with the same account on horde.

Horde was updated today, ActiveSync 2.8.4., full resync afterwards.
Mobile1: Samsung Galaxy S3, Android 4.1.2
Mobile2: Samsung Galaxy Tab, Android 4.0.4

I create an event in kronolith: it appears two times on mobile1 and on  
mobile2.
I create an event on mobile1: it appears correctly in kronolith and  
two times in mobile2.
I create an event on mobile2: it appears correctly in kronolith and  
two times in mobile1.

When I do a full resync everything is fine - the events that where two  
times on the mobile are now correct as well - but when I create a new  
one - same as above.

Same thing when changing an event:
An event available correctly on all devices gets changed on mobile1  
now is available two times on mobile2.

Any hints about that problem? For creating traces I first have to  
change some configs, as all traffic is SSL encoded - so I'm asking  
first if i'm missing anything - but I didn't find a hint on the  
mailing list...

any help appreciated,

Lukas