Some bricks are not getting auto-bevelling, Some break their geometry entirely

[Jackpedleham]

After importing with autobevel and high res meshes im finding that many brick edges remain unbevelled, some bricks, whilst their curved faces are smoothed, the side faces still have facets making them unuseable and some bricks break entirely.

[TobyLobster]

I think this is down to poor modelling of each brick at the high resolution, not sure there's much I can do about this one. The standard resolution bricks are better I find.