I installed your addon "b" "Sol". (without changing anything)
my texture is in Celestia / textures / hires.
I did the research with the keyboard method of Celestia by b
There is a lot of object starting with the letter b, so I did the search by sol / b and your planet appeared in first position and your model appeared on the screen.
To facilitate the search, perhaps you have to change its name, for example bjupiter to start.
Otherwise, do you have another object in the Solar System called b. In which case, the second object takes the place of the first when loading and you do not realize it. With the multitude of addons, any object that would be called b and that would have an "invisible" Class could pose a problem with your addon.
my texture is in Celestia / textures / hires.
I did the research with the keyboard method of Celestia by b
There is a lot of object starting with the letter b, so I did the search by sol / b and your planet appeared in first position and your model appeared on the screen.
To facilitate the search, perhaps you have to change its name, for example bjupiter to start.
Otherwise, do you have another object in the Solar System called b. In which case, the second object takes the place of the first when loading and you do not realize it. With the multitude of addons, any object that would be called b and that would have an "invisible" Class could pose a problem with your addon.
Added after 19 minutes 29 seconds:After finding what's wrong, you can find texture-map here:
https://pics-about-space.com/planets-hd-texture?p=1