Any chance of that pic? Was wondering whether to do mine or not...?No - there were a number of different areas where it went "funny" - and strangely only ever happened on the middle rung. It looked as if there was a clear bit of plastic that had been left on and was flapping about a bit, but I don't think it was meant to come off as it wouldn't peel from the bits that still looked OK. The chrome underneath the plastic that was peeling was the bit that discoloured.
I may still have it in the garage. I'll maybe dig it out and post a pic some time.