Ok, I see now - I am really getting both messages at the same time. However, if a Ground Station Operator want to check the line status during flight, he/she won't be looking at ivyprobe in terminal, but at the messages window or at the plots. Is there a way how to alternate the messages so they are displayed on the same rate? I.e. once you send I2C2_errors, then I2C1, then I2C2 again...