How to read a texture imported with the Datasmith Runtime plugin?

Working with UE 5.3.2, I want to read the pixel data from textures, which I import at runtime with the Datasmith Runtime plugin.
My problem is that the read pixels do not represent the texture that I see. I try to read the pixels similar to this.
Additionally, when I try to look at / open the texture in the editor, the texture “gets broken”. I open the material of the mesh, see the texture preview where the brick texture is shown, but when I open the texture it does not look correct anymore.

Preview

Opened Texture

I compared the runtime import to the “normal” import in the editor and the texture not only opens perfectly but some settings like SRGB and CompressionSettings are different, compared to the runtime import.
Any idea on how toi handle that is welcome.
Thank you.

What is the original file format you are importing with Datasmith runtime?

I import a .udatasmith file with an assets folder in the same directory. The assets folder contains .png and .jpg textures.