Kolab Horde SyncML not syncing contacts in 2.3.x versions

[Jesus Oliver Molina]

Hello all,

I updated my kolab installation from 2.2.4 to 2.3.0 and all my syncML  
clients have stopped syncing contacts (although calendar, tasks and  
notes work correctly).

I have installed a fresh install of kolab 2.3.1 in a virtual machine  
to test it just to check if it is a problem with the update I did or  
if the problem was solved in the new release. But I got the same  
results.

I'm using funambol, sync-evolution and symbian integrated sync  
capabilities on a nokia E51. None of them outputs errors and I have  
not found any useful reference reading the server logs.

Any ideas of how could I get syncML contact sync back working again?

Thank you in advance.

BR

Jesus Oliver