Hudson changed the specs on parts it contracted CVMI to make. They had to, because of reliability issues. They alleged that CVMI had given them out-of-spec parts, CVMI alleged that the specifications were changed.
Regardless, Hudson was assembling guns with the out-of-spec parts and selling them. They had to, because they did not have operating capital. They needed the money to pay bills. Then one day the money and parts ran out. Hudson shut its doors overnight and filed bankruptcy a few days later.
When that happened they had ~90 customer guns in for warranty repair. Which had been fully disassembled and were never returned to their owners. In Chapter 7 bankruptcy, they sold the H9 IP to Daniel Defense and liquidated the remaining parts they had, CVMI did the same.
At the end of the day, the Hudsons has millions of dollars in capital unaccounted for. And thousands of defective guns they had put on the market. And that's where the Hudson-part of this story ends.