Verify if Xert server connection works properly by running EBC on the Karoo.
Should say “Loading your Fitness and Progression data…” then display Home page of the EBC app if successful.
I’m not saying you need to run EBC for the data fields to work, but the login connection needs to work to ensure your fitness signature on the device is up-to-date.
Also, calculations on XO server are more robust than is possible with a data field.
A related issue can occur if you do use EBC and see a “Breakthrough!” message, but not when the activity is uploaded to XO. Or the XO analysis determines a Near Breakthrough.
Welcome aboard. 
As a newbie you may also be interested in my recent Onboarding post.