Adaptive Cube infill doesn't generate consistent density across clones

Hi,

I’m running into a genuinely weird bug, where I have multiple clones of a model in a single print and only the first instance of the model has correct infill. Has anyone else seen this? Is there a workaround, or is this just a bug?

Multiple non-cloned copies of the same model does generate the expected output, but if you merge those models into a single assembly so that support unifies correctly between the models, it breaks again. Un-merging fixes it again, but it’s definitely bugged.