Thanks - I can now load the scene, but still not able to replicate the issue you are having. This is what I get when I open the viewport.
Are you animating the position of the replicator transforms? If so, they I would suggest instead to not animate the replicator particles, and instead have a static grid and animate the material instead. Use an Octane RGB Image with a Planar (XYZ to UVW) projection and World space coordinate space. Then animate the RGB Image -> UV Transform -> Translation to move the LED's that are on.
I hope the helps a little.
Thanks
Paul