MVS->AES Conversion issues

So I've been tasked with finishing a Prehistoric Isle 2 conversion, but I'm having some issues getting it running. I've swapped all the chips over and the game boots, but has garbled graphics. It seems to work just fine apart from the graphics issues. I've checked all the jumpers on the PROGBK1 board and they're the same on the original and donor boards. I've uploaded a video of the issue here:
Also a picture of the board here:
http://arcwil.net/neo/prehistoric2.jpg

Not sure where to go next with diagnosing the issue, does anyone have experience with these?

Edit: After asking around, it looks like the wrong version of the CHAFIO board was used. Looks like I'm good for now!