PNG image not showing in Dataset automation in Photoshop

Hi!

I am using Photoshop CC v 19.1.6 and trying to learn how to use automation with variables and datasets.

The problem is that I am trying to replace an image layer with a PNG image in my laptop and it does not show, it replaces the layer with a transparent image.

To do a proper test I have created a dataset that loads two images, both the same: one is a JPEG and the other is a PNG.

So the first dataset works properly and the JPEG image is shown but the PNG is not.

I am desperate!!! Any one has a solution for this?

Thank you!!!