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Yeah. Induction stoves work by invoking magnetic current in the metal that's resting on the plates. For that to happen, the material needs to be ferrous. Pure copper won't work, and alloys are less effective.
It's a minor inconvenience. You can't use glass tea kettles or copper (as I said), for instance, but most stovetop cookware of already ferrous: cast iron skillets and stainless steel, mostly. Most modern cookware with copper or aluminum is steel clad with the other material as a core, because steel is vastly more corrosion resistant. That works fine, the steel gets hot and transfers heat to the core and it's business as usual. Almost nobody buys pure copper cookware anymore, and nobody in their right mind would buy pure aluminum cookware. The real issue is that tempered glass is still moderately popular for some uses, and that's useless on inductive stoves.
Technically speaking, any conductor* could be used as induction heater, it would just not be good. Even for paramagnetic stuff, you still have spins which will have some exchange energy, and some from external field. It may not have a high resistance to the changing fields, but almost everything does have some resistance (what i am saying is, is that almost all materials have some non zero resistance an dnon zero susceptance).
There's probably not enough joules being generated by a domestic induction stove to generate more heat in a non-ferrous material than is lost through common radiation at room temperature. Not enough to be noticeable without instruments, in any case.
touche