Plugin installed, analytics.js inserted but not sending data to GA

Hello,

I just installed your plugin which looks very nice and very easy to use and wrote down the traking code.
I tried all the options:
the basic and the custom, with or without disabling tracking for admins and all the other option. all wuth the same result.
I checked out in googlechrome that it is displaying the analytics.js correctly, but it is not sending data to GA.
I cannot see the traffic in the Real Time report of GA.
With the development tools of chrome I dont see the sendng information to GA either.
Do you know what can be hapenning?
Thanks!

https://wordpress.org/plugins/google-universal-analytics/