Particle problem

I created a wood chipping effect on a block of wood to reveal words but when played back, the block of wood teleports from concealing the words to being half way in the floor, could anyone help?

We definitely need more information - at least some images or better your blend file (you can upload it on pasteall.org).

(this post is actually more related to the basics/particle section of this forum than to the technical support area…)