Smart Bar troubleshoot

Does the test mode have a timer such as turning off in one hour? 

Why is it that the DMX address & channel is not woking when the test works fine? What I mean is 3 Smart Bars work fine and the fourth one hooked in is not receiving commands at all. Then the test works fine. By messing with the text mode, am I disabling with the DMX command? 

Thanks, jim

PS the Exhibit is in 22 hours.