This is coming from the OSX filesystem or are you using another?
I also use macOS daily, and I never saw this before. Understand why this happens is crucial. Are you able to reproduce it at any time? Would you mind to share in DM all the steps to reproduce it?
I think so, the debug tool you can retrieve keys and several other things. But I never try recovering anything before. Maybe you can do a copy of the p, zw, w files. And edit or delete the manifest and try again. But not sure if that works for real.
@dmai can you answer that?