Luckily, no.
I haven’t had any trouble… yet. But I’m also pretty cautious about it. As I’m sure you’ve noticed, I make things in “batches.” So when it comes to stamping the damp-leatherhard pieces, I like to use different stamps for different pieces. I think it helps with my aesthetic, but I think it also helps in switching up my hand positions & angles. Especially when I’m doing the large vases & platters with hundreds of repetitive impressions, I try to do just a few rows on one piece. Then move over to the next one with a different stamp for a couple rows on that one. Different piece, different stamp, different angle, different hand position. Moving down the line through several pots, then back to the beginning on the first pot for a few more rows. Eventually they all get done and I haven’t spent all that much time with one stamp, in one hand, in one position, one one pot. Not sure if that helps, but that’s my theory and I’m sticking to it.