Hello Karol,
I tried to run your demo project s7_sk_msg_blinky_1_0_0 with SSP 1.1.3 but it fails due to a duplicated symbol (p_subscriber_lists[] inside message_data.c) and, if I manually delete this symbol, then it compiles and runs but it hangs inside g_common_init() with the error SSP_ERR_INVALID_MSG_BUFFER_SIZE being the reason that sizeof(sf_message_payload_t) is zero. Can you please make it work with the current version of the tools? (there is something I'm missing because I couldn't find where to define the message payload size inside the configurator)