I know you said it was multi-ply, but did that pan actually have anything other than a copper core? For example, steel or magnetic stainless steel? Some multi-ply cookware still isn’t induction compatible because those magnetic core materials aren’t included. Copper alone is not compatible with induction because it can’t respond to the magnetic field produced by the induction hob (which is why I’d be skeptical of anyone saying copper “draws too much current,” if anything it draws too little or none at all)
I always do the magnet test on new cookware now, or look for people doing it in review videos. The more magnetic material used (within reason, obviously!) the better the pan will respond to the stove.