Need some help with Neogeo MV1B Vertical lines

[Arcade-Projects]

I recently received a MV1B 1 slot and I'm having some issues with vertical lines on some sprites. I'm a complete noob in fixing these things and was hoping to get some direction from more experienced users.
After researching a bit it seems to be usually caused by a floating/shorted c rom trace to the zmc2 chip, but i tested all those traces and they seem fine. I even logic probed each pin and none seem stuck. I've also tried grounding each cr pin to find a possible culprit and cr7 seems to be the only one that doesn't change the image, but its traces are fine and it isn't stuck high or low. I'm completely lost now and not sure where else to look.

I've thoroughly cleaned all contacts on both the board and cartridges and still nothing. I also re-flowed all the pins on the zmc2 chip.

Is it possible the zmc2 chip is busted and the only fix would be replacing it, i'd assume there'd be more graphic issues if that were the case though?

Here's some images of the problem.
arcade-projects.com/forums/ind…544c11bd7561542e1e16ec7c0arcade-projects.com/forums/ind…544c11bd7561542e1e16ec7c0arcade-projects.com/forums/ind…544c11bd7561542e1e16ec7c0arcade-projects.com/forums/ind…544c11bd7561542e1e16ec7c0

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