Yeah, I feel like the particular chunk is dead dead. That would explain how it got up to 82m refreshes, and then the ever-decreasing amount of refreshes until freeze when I retried the tool. I bet if I continue dumping the cart to cia repeatedly it will eventually fail because each read lowers the limit.
I was able to use checkpoint to dump the save file by hot-swapping the cartridge, so I'm content with calling this one gone.
No issues noticed! Great work!
