Hi Francisco,
I’m glad we were able to connect! I’m sharing an update here as well ??
As we discovered in the support ticket, the extra tracker was being inserted via Google Analytics.
In case others are running into a similar issue, here are a couple of places to check:
Within your UA property at analytics.google.com, go to Admin ? Tracking Info ? Tracking Code and click into the Connected Site Tags section. From here, please disconnect the tag.
Within your GA4 property at analytics.google.com, go to Admin ? Data Streams and within your available data stream find the option Manage connected site tags. From here, please disconnect the tag.
Removing the tags from these setting pages will remove the extra tracking ID or measurement ID instance from your website since MonsterInsights already takes care of inserting your tracking codes for you through our Dual Tracking feature, once configured.
For information on how to set up dual tracking, please see here: https://www.monsterinsights.com/docs/how-to-set-up-dual-tracking/
I hope this information helps!