I bought a copy of Count Zero on the Kindle Store. Halfway through reading, it refuses to open on my Kindle. Deleting the book and re-downloading it results in

I bought a copy of Count Zero on the Kindle Store. Halfway through reading, it refuses to open on my Kindle. Deleting the book and re-downloading it results in the same thing. I update the software, still nothing. No amount of time spent troubleshooting suggestions from Amazon, Reddit, etc. change a thing about the situation. There is literally no way to open the book that I legally paid for on my Kindle hardware that I legally paid for. Maybe I can buy another Kindle and cross my fingers that the bug doesn't show up there, but this Kindle isn't even old. I bought it in 2019 and the battery life is still excellent. Guess what I did after that with Count Zero and every other book I ever bought on the Kindle Store just in case?