I'm having an issue with the dev build. When I try to launch any craft with the MapSat part attached, the game hangs on the loading screen. This started happening after I installed B9 and KW Rocketry, so it could be memory related. I have a couple satellites already in orbit with MapSat parts, and I can switch to those just fine. I tried the batch file for clearing duplicates from artifacts.dat, but that didn't fix it.