Hasta La Motion!

Hello there, I was hoping to get some pointers in the right direction. I’ve done a few searches of the forum and this problem hasn’t come up so its probably something incredibly obvious and in my face. I have just undistorted a scene using an STmap node, which has my motion plate rendered back in as a single plate.exr. And the scene has become nicely undistorted, but the camera tracker just wont track it anymore. I works fine on the original plate but through the st map node and lens distortion node it just skips to the end frame and acts as if nothing has happened. As I said before its probably something incredibly simple that I am missing.

Any advice would be much appreciated, thanks in advance 🙂

This also doesn’t track when of course the lens distortion tool isn’t connected and its solely the original plate with the STmap and motion shuffled lens analysis plate. Which I really cant understand why it isn’t tracking.