Bob WELCOME from me. That is not an intro it's a book. I've never had this issue so can't comment needs an expert, I think someone whose had it before might know.
I would slow the speed down and see what happens and thin blades will break under pressure so don't force them and ease off on the tension see what happens. I'm sure you will get good advice from EX-30 users. There I said I coudn't comment. Roly