Awesome. Thanks Alpha-Bull! The system in question is Alpha Mus. Here is my Save File , too. Just put yourself in the path of that freighter that is flying in your direction to exit the system.
I entered a system with Boscan(?) ships in it, ignored them and went about my business of exploring planets. Eventually one of their transports paths intersects mine and the conversation dialog appears. They "don't speak human" ... so the only dialog option is to exit, which I do ... then the transport path intersects mine again and instantly brings up the same "don't speak human" dialog with 1 option (exit), which I do ... then the transport path intersects mine again and instan.
The whole UI is freezing on the sector map when i search for the alien system from the quest. I type 3 letters, then *bam* lockup. Music playing in the background, but nothing gets out except killing the process.