Probably a bad batch, as they couldn't make products that normally didn't dry and survive as a company. I'd take the can back.

I've got a couple of dodgy cans of clear nitro that seem to throw up an iridescent film on the top as the lacquer dried (not moisture hazing, this is different) which I've thrown away. Big stuff I get the spray gun out for, but for the odd small bit, I find cans easier and more immediate.