Jitter shatter effect

hi all,

Im working on a patch for a university project in Jitter.

Im by no means a pro but i generally understand the signal flow and what objects are doing within a patch. I found some useful Jitter tutorials here...

https://cycling74.com/tutorials/the-video-processing-system-part-1/
https://cycling74.com/tutorials/jitter-recipes-book-3/

i want to combine this with the Shatter effect in the Jitter Recipe Book 3, but i am having a little trouble getting it to work properly. I want to shatter the incoming video feed keeping a second video going in the back ground.
I have encapsulated the main workings of the the original shatter patch into an encapsulated patch called 'p shatter' and fed the jit.qt.grab output to the first inlet of jit.gl.texture.
Im getting some strange effects happening.

I wonder if some more advanced users could take a look and see what im doing wrong i have a feeling its something simple.

Thanks