I downloaded and attempted to so something with the demo of HitFilm4 Pro on my Surface Pro 3, i7 512 GB. Windows 10, latest update (unfortunately... their autoupdate updates with far too much alacrity, and the latest updates have been more bug ridden than Swiss Cheese).
HitFilm4 has hung every time I've used it. The first few times, I added some folders, then attempted to import footage... right clicking hung it. Had to reboot (hard reboot, I couldn't even convince winblows to give me a task manager window). Tried again, clicked the import button, same result. Tried again, imported some footage directly, played it a bit, stuffed it into a folder since I need some footage from the other camera, hang.