Hi YINAVTAL,
When you save your scene with assets, it certainly will not improve, but after you have done this, could you try this:
set the image path to ../tex/image-name.suffix
or just test the example, and if that is black, the. ../tex/name.suffix
in the file path.
I assume you have checked after saving the Main Menu> Windows> Project Asset Inspector…
If all of that leads to nothing, then the support needs to look at that.
https://www.maxon.net/en/support-center
Here the alternative file path could be: ../tex/0512.jpg
All the best