It seems Aurora can't handle images with more than 3 characters in the name if you manually choose the picture, so if you generate a system using my planets v1 there will be an error for gg10, gg11, gg12, gg13, gg14, gg15 ,and gg16 if you manually select the pictures.
The solar system pack is basically unusable, and the jumbo pack will have errors with gg10, gg11, gg12, gg13, gg14, gg15 , gg16 AND ha10 and ha11 if manually choosen.
The fix is pretty simple, Aurora looks for an image named the last 3 letters of what you selected, so you need copies of the gas giants named g10, g11, g12, g13, g14,g15 and g16, the extra ha planets will just end up using the already existing a10 and a11.
For the solar system images I'll need to put in redundant copys of the images which are named the final 3 letters. This is a problem for certain images with similar names however, so I'll need to upload a new version of the pack with slightly renamed pictures, untill then I'll upload a fix.
I've attached a new version of the Solar system pack to the origonal post. It renames each image to end in a 3 letter code, then has extra copies of the planets with the code name.