My guess would be that the Ikon Slants are dual plated, possibly with a copper base layer & it looks like the top coating, which is could be what attracts magnets, has gone wrong in some way.
For a razor costing this much, I would expect a far better finish. I hope that you get a positive response from Ikon, but historically, they don't appear to have exactly excelled at customer service.
What really puzzles me is that if the razor were truly stainless, why would you plate or coat it? It would be cheaper to just buff the raw parts to the desired shine, like Weber razor does, or leave it unfinished as Above The Tie razors are.