LM5Lp not recieving Telegrams

[AEK]

Hi, 
I have a LogicMachine 5 Lite Power, that sends telegrams to the KNX bus, but does not recieve anything from the bus,
the LM is TP-UART, address corresponding to KNX Line, and there is no active filter policy.

With the ETS connected to the KNX bus, we send a read telegram to the bus, the response telegram is registered in the ETS Group Monitor, but there is no update in LM.

We tested the LM in a bench and works fine, sends and recieves KNX telegrams.
Any ideas?

Hi!
maybe "auto update" button in object tab is disabled?