I'm aware of the limit for total number of frames pushed, but do the frame motors have any other limits? I'm having an issue with this elevator I built. It goes a little over 60 blocks up, and the motors move it up and down fine until it get about 2/3 of the way down. Then it won't lower any further, although I can go back up and down again to that point over and over again. There are no obstructions that I've been able to find. Sorry if this is the wrong place to post this, new to the forum.