the last batch didnt, ive got a set from the last batch and there fine. they had the mould re done for the last batch
Thats what the bottle of ‘tyre weld’ is for! 
Ah, I thought I had one from the last batch, my mistake. Good to hear they’ve sorted it.
I’ve got some from the last batch and they are as good as gold.
Only things is as pointed out above the moulds are quite old and the fronts do have some small imperfections that can be seen in the gloss black paint, but once they’re covered in brake dust you can’t see it !