Since September, the GTM template in Amplitude is not able to track the utm parameter and referral source as user property values. I checked the documentation that the GTM template was recently updated, and I noticed that the Track marketing attribution option is checked when configuring the Initialize tag. However, the utm parameter and referral source are not collected as user properties, but only as event properties of the Page Viewed event.

I'm wondering if anything has changed in this regard, and also how I can check the initial_utm or initial_referrer.