First I tried to re-install syncmate and at the first sync, it worked (sync both ways and modified contacts at each side were correctly copied). But after this first sync the problem was back. Sync only from Mac to mobile.
I would appreciate, if you describe in detail your actions after the first successful synchronization.
Did you create the new contact(s) which were supposed to be synced during the second synchronization but they were not synced? If yes, please, describe parameters for these new contacts as detailed as possible (both fields that you filled information in and default fields).
I can try creating a new account but I imagine that it's pointless since I need the info that's in my actual account to be in sync.
What do you think?
There is not need in doing this.
Please, perform the following:
1) Delete connection with your mobile device in SyncMate (Connections -> Delete connection...-> Delete all connections), establish the new connection with your mobile device and see if the issue persists.
2) If the issue still persists, please, provide the following:
a) SyncMate activity log during synchronization for Contacts only;
b) Please, specify whether you're using the latest build of Snow Leopard - 10.6.3. If not, please, let us know the exact build of Mac OS installed on your Mac.
c) Provide us with the System.log during synchronization.
To find System.log please follow Applications -> Utilities -> Console - Launch. Choose System log, clear it (toolbar button - Clear Display), perform synchronization in SyncMate and send us the messages from system log.