Problem with Universe 1

I started a new show on the Hog4 PC (Nano) and noticed that the system by default was turning on lights on certain channels randomly such as channel 131 on universe 1 even without any fixtures present (on a new show). I've tried inputting new fixtures, etc. and this problem is still occurring. However, when I utilize the 2nd universe I'm not noticing the problem. Is this a setting issue or a problem possibly with the Hog4 Nano.