Yes, I had this happen also...
... with the 3/32 set after about 5,000 dimples. Bought another one from Avery and finished the plane with the second one. The failure occurred with the male die set in a rivet gun (I don't remember why I was doing it that way...probably because I couldn't use the squeezer). After the "lesson learned", I never placed the die in the gun after that. Or does that make it a "lesson incomplete..."?