I was about to add a case but noticed this one at the top of the list.
I have the UTM query parameters missing for some contacts but not others. All coming from the same place and google url.
Its reporting original referrer in a selection of ways.
The google url was used on a Linked in sponsored ad.
In most cases the UTM parameters are in the query parameters but that wont show in the original referrer field.
I'm not sure whats going on.