Looker Studio: Reach incorrect with blended data source

Hi there,

We have created a Looker Studio report that pulls our data from Meta through a connector but we’re having issues with the way it is pulling the reach.

Directly in the original data source it works fine and matches our metrics from Meta but once we blend the data with a Google sheet (that doesn’t have any numerical data, just names) the number it is pulling is a lot higher - basically double.

Do you have any understanding of why this would be? Thanks.