i3pro and server mismatch

Good morning. Im creating a i3pro - iridium server project to control a 5-line knx installation. Some times when I assign a command to a buttom in the interface the server sends a knx telegram to a different group address.

The server and the interface app are synchronized. When I write to the group address directly from the server web interface it works. It seems that the order from the interface to the server has a mismatch

How can I solve this? How does the server-interface communication work?