I have modified LogSize 10000 in celestia.cfg
I now have many more entries in this load report.
I found Ahuna 3D
This is an error on the parent body that is not found at this time of loading.I understood that in 'extras', the files are loaded by Celestia in alphabetical order folders then subfolders and ssc files.
that I did not know
I had :
extras / solar-system / Dwarfplanet / Ceres
Logically Celestia charges Ahuna before Ceres and the path "Sol / Ceres" is not found.
Since I do not really like ssc files grouped with multiple objects, I will have to review my folder names, subfolders, files so that they are loaded in the correct order. Perhaps by putting a serial number in front of the name of the file then a number of order for the sub-folders and finally a number of order for the files. (1 will pass before 2, 2 before 3, ...)The information on the loading order, I never saw it in the tutorials or forum.
It's amazing because it's very important.
While pulling the loading report, I saw many other mistakes.
Provisionally, I put the Ahuna 3D script in the same file as Ceres, following. And now it works. Except that Ahuna is misguided. I'm going to reread the topic posts.
Thank you for having unlocked the situation especially that it will help me to solve other loading problems.