Anyway, a kind of adjusting the chemistry and the workflow seems to be obligate, if you see such a strange result.
This was, by the way, the reason why I started homebrewing E6 chemicals a few years ago...
Maybe it will be easier for most people to try a slight pull development, and a slightly more acidic CD for home developing with “normal” chemicals.

Beside heavy photoshopping after scanning only disposal and banning the vendor will be an alternative…

Regards, Stefan