I'm a little confused by your descriptions. The ./levels/test/ folder for example only contains levels; there are no subfolders, so not much of a structure to speak of. If you create a new folder under ./levels/ and then copy (don't just move, make a copy) the individual level files inside the ./levels/test/ folder into your newly created folder, can you navigate to the newly created folder or not? What about copying just a single one of the ./levels/test/ level files into the new folder?
Yea this is seriously confusing to explain it properly hehe.
""If you create a new folder under ./levels/ and then copy (don't just move, make a copy) the individual level files inside the ./levels/test/ folder into your newly created folder, can you navigate to the newly created folder or not?"" <--- Yes to this. I Can navigate to it and play these levels placed inside my newly created folder.
But If I did just copy a folder and its subdirs such as levels/network/2player/1. Lemmings/ into my new folder named /levels/test2/ This will now fail, nothing will be clickable, not even the folder named 'test2' anymore.
example: So if I made an empty folder named /levels/test2/ and run the game, i can navigate to this folder.
If I then copied the tree of /levels/test/ and put it in my new folder so it looks like this now
/levels/test2/test/ ,and then ran the game, I would then not even be able to click on anything to navigate it, like I could before doing a copy of that 'test' folder.
Very strange.