I had taken the Movi out and was moving along nicely when suddenly the Toad in the hole came unclamped and the bottom part of the Movi made a plummet for the ground. Fortunately the rig was not up high and was over dirt, not pavement. No real damage noted to anything except may be some scuff marks. I do not know why it came undone. I was walking with it for a few minutes without a problem. Something had to both pull the hinge back and press both buttons at the same time. It seemed perfectly steady before that so I would think if I didn't have it fully engaged it would not have worked that well. I was filming at the time. If I had to guess, one of the cables was perhaps locked inside the clamp and use of it caused the clamp to disengage. I am not sure how the Movi works with that clampe disengaged but since it can spin freely it might have wrapped a cable around it cause both buttons to press in and detach. It happened so fast that I wasn't able to figure out what happened. As Soon as it fell I immediately grabbed for it and was focusing on turning it off. Just a word to warning to make sure you clamp the toad in the hole together without obstruction and that it is good and secure with nothing near it before using it.