Bulk operation to tag duplicate addresses in database

Hello - I am trying to perform a bulk operation on my database to tag duplicates based on a field called “text address”. I set the field to change when the count of that field exceeds 1. Instead of just marking the duplicates, it is marking all entries! What am I missing?

Update: So I made some progress and now am able to mark all duplicates however I ideally want to mark all but 1 of the duplicates. Any idea on how to exclude 1 value from being marked?

Here’s where I’m currently at:

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