Im going to guess you missed a step in the set up. After you read ANY new sensors to ad to the logger you then need to right click on the logger from the first screen then add them all to the telemetry and save. Otherwise it will not record any of them...Its easy to do and harder to explain, but I am sure there is a youtube video. Lord knows I have done this for alot of folks who miss this step.

You can call me if you like and I can walk you through it. Might take a couple tries as my house got flooded Friday night and its kinda noisey in here.

Just looked and here you go
https://www.youtube.com/watch?v=RNogdni5gd4