It’s only sort of a solution, I’m afraid. It requires quite a bit of adjusting to get the texture to re-match up, but the problem is, if you try and use the instance anywhere else with the same problem, you have to adjust it again, which in turn messes it up for the others. So you would have to make multiple instances for each area. :-\
But yeah, the chequered grid is a bit messed up here:
