I want to make a tentacle like the ones form Doc Ock in Spiderman 2.
Its not really the same but its the same principle. I've tried to animate the tentacle with Curvedeform and Hooks.
Everything seems to be fine in the viewport, but when i press F12 the output is a frame which doesnt excist anymore. Its always the same - no matter which frame number iam rendering.
My question: WHY?

.Blend file
PS: sorry if my english isnt very well
