I also experienced a a crash of my client and server when canceling an item on the research queue. I attempted to reproduce the crash but I was able to cancel the research that caused my first crash with no problem. I began randomly canceling research items, after multiple attempts my server crashed...

I am also seeing this same issue on the windows headless on 0.17.1. It looks like we are also missing settings from the map-gen-settings.example.json for Map type Island, Moisture, and Terrain Type that were all mentioned under https://www.factorio.com/blog/post/fff-282 . When the example is updated...