UTM_source problem in WordPress need to be fixed

Job ID: 36459792

Budget: ₹600 – ₹1,500 INR

You have to be Indian, should know WordPress, and should know how UTM works.

Problem:
When someone is visiting the website from an advertisement campaign then the UTM _SOURCE is showing correctly in the address bar.
But when navigating to another link from Footer or Megamenu then UTM _SOURCE is gone from the address bar.

We Have Tried:
The links that are working with UTM_SOURCE into the body of the website, but when I copy the same link from the body and paste it inside the Megamenu or Footer then UTM_SOURCE is no longer showing.

We need the solution ASAP because we are unable to run the ads campaign without this UTM_SOURCE because UTM_SOURCE is the only way to track the campaign into google analytics