When I make a NEW project and import a .M4V movie, Hitfilm freezes and then I have to hard reset my laptop.
I saw in the task manager Hitfilm went up to 9GB in memory, jumped back to 1.5GB and while my HDD light was constantly lit, until Windows 7 froze.
Some awful memory leak is going on in this version. Not sure if others are experiencing this, but be careful upgrading. I'm glad I didn't have any urgent tasks to finish.
I'm going to try ver 12 and see if its any better.