While running mission 2-1("The Sky Underneath", I believe it's called? Depth 2), I suddenly found myself locked in place in the middle of combat. I could not swing my weapon, change to another weapon, change direction, or move. I tried hitting all manner of different buttons in panic as I was beset by slimes and a... treant, or whatever it's called(I've only just started playing SK, so names of mobs sometimes elude me).
I was killed, but had plenty of energy to spare for a rez. Little did I know I would STILL be locked in place. In a last-ditch effort, I exited the game, not knowing where my character would end up.
Before I was locked in place, I was charging an attack with my Heavy Hatchet with a Super Stun Gun as my Weapon 2. I read something about someone getting stun-locked for three seconds or sommat when struck by a stun attack while charging, but this goes WAY beyond three seconds. I was locked in place for a good ten seconds before dieing, and then again for another four to five seconds AFTER I was rez'd.
If anyone has ever encountered something like this, or has read about it, please let me know.
Try locking your HUD when you're in the clockworks. The default hotkey is "Q".