Something that might help @bonny and the team to track down the issues with it…
Score the snapmarks on a sheet of draftboard so that all the settings are correct, and take a screen shot.
Then on the screen, move the snapmarks and design (move them at the same time by selecting CTRL+A and shifting everything at once.)
Then Snap the marks back into place. Then Score them again. Take a screen shot of the second score results next to the first ones and post that. It helps them to see what’s going on.