Thanks very much for the kind words about the level. I am glad you found it beautiful as well, that was one of the goals.. :>
Regarding the bug... that is very strange, I did not run into that problem at all when I was testing it and can't really think how I could make Eufloria produce that behaviour. Are you sure it wasn't that Asteroid A could reach Asteroid B, but Asteroid B couldn't reach asteroid A? I did see quite a bit of that during testing, although by travelling via a neighbour there is always a way back to Asteroid A.
I'm not going back to fix anything at this point but I'm curious about any bugs that emerge, so if you're up for sharing a bit more about your experience with this I'd be very happy to hear about it. :>