Error loading textures from Cinema 4D project with Datasmith

Hello everyone, I have a project imported with Datasmith from Cinema 4D 2023 to Unreal 5.6. The problem is that it won’t load textures that appear to be correctly linked to the shader channel, but I get an error message in the material window.

Could someone please help me? I’ve tried turning off the computer and reopening the project.

I have consolidated the Cinema 4D project and tried to relink textures, but it seems that something broke overnight…
I don’t understand how to solve this.

Thanks in advance¡