Error: Two Slicer data fields linked

Hi, I have two slicer on the same page that are having a strange behavior at design time (see the photo at the end).

They have the same dropdown list of items, and that's because at design time, whenever I add or delete one data field from one of the slicer, Power BI adds or deletes the same data field on the other slicer. I can't use different data fields in each one. So I have two different slicers having the same behaviour.

Every other slicer has their own field.

How can I correct this?

Here's a photo where the problem happens:

Thanks