not being argumentative
but polarized lenses are completely unusable with my preferred helmet
internal sunshade, visor with fog resistant pinlock insert
cannot see a damn thing through that combo with polarized glasses
normal sunglasses are fine
normal scrip glasses are fine
but of course everyone is different
It's probably because one of the lenses in your helmet is also polarized. Double polarization can indeed screw up your vision, or in some situations, result in no vision at all if the lines of polarization don't line up.
It's indeed something to keep in mind for those with full face helmets. My full face on the flipside however has just a standard clear unpolarized lens so I can still wear my choice of glasses behind it.