So this is a weird one - grabbed some Scubapro fins off FB Marketplace. Just wanted something cheap for the pool and maybe snorkeling. Wore them tonight; was rinsing them off at my house and it's like black ink/dye is just pouring off them. I noticed in my car there were black splotches on things and I was like, "What the...?!?" Has anyone ever experienced this? I can't figure out what is happening. Is this a "these fins are too old?" sort of issue? The rubber was still soft and flexible so I thought they were okay. Even if I get the water to run clear, as soon as I rub them in the water the dye runs again. Completely mystifying.