Adding new solars
I think I've isolated it to the hidden wrecks additions as when I remove them from the script and restart the mod (server side) the unmodded clients can now launch without crashing.
So, I guess the question is; Is there any way to add hidden wrecks to the server side of a mod that will not cause conflicts with clients not running the client version?
While I wait for an answer I'm going to go look at those changes again...