Hi Dante,
If you open up the Related field displayed in that relationship and look at the usage does the usage show it is the field that is on your forms you are viewing on and also does it show that values are filled in for that field? In the usage you can see an option that notes how many records have a value in this field under the field settings. Sometimes this happens with the field being used for the relationship and the field being filled in for a value have almost the exact same name but are slightly different and the wrong field gets used as the reference field.
